opendal: Support 307 redirects for webhdfs multi write (Needed for hadoop 2.6)

Webhdfs with hadoop 2.6 will return error like the following for multi write:

    Finished dev [unoptimized + debuginfo] target(s) in 0.17s
     Running `target/debug/opendal_test`
thread 'main' panicked at src/main.rs:21:35:
called `Result::unwrap()` on an `Err` value: Custom { kind: Other, error: Unexpected (permanent) at Writer::close => deserialize json

Context:
   service: webhdfs
   path: webhdfs_test1/sink_file.txt

Source:
   EOF while parsing a value at line 1 column 0

Backtrace:
   0: std::backtrace_rs::backtrace::libunwind::trace
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1: std::backtrace_rs::backtrace::trace_unsynchronized
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2: std::backtrace::Backtrace::create
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/backtrace.rs:331:13
   3: opendal::types::error::Error::new
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/types/error.rs:338:24
   4: opendal::raw::serde_util::new_json_deserialize_error
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/raw/serde_util.rs:43:5
   5: core::ops::function::FnOnce::call_once
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/ops/function.rs:250:5
   6: core::result::Result<T,E>::map_err
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/result.rs:829:27
   7: opendal::services::webhdfs::backend::WebhdfsBackend::webhdfs_create_object_request::{{closure}}
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/services/webhdfs/backend.rs:273:13
   8: <opendal::services::webhdfs::writer::WebhdfsWriter as opendal::raw::oio::write::block_write::BlockWrite>::write_block::{{closure}}
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/services/webhdfs/writer.rs:78:14
   9: <core::pin::Pin<P> as core::future::future::Future>::poll
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/future/future.rs:125:9
  10: opendal::raw::oio::write::block_write::WriteBlockFuture::new::{{closure}}
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/raw/oio/write/block_write.rs:123:14
  11: <core::pin::Pin<P> as core::future::future::Future>::poll
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/future/future.rs:125:9
  12: futures_util::future::future::FutureExt::poll_unpin
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/futures-util-0.3.29/src/future/future/mod.rs:558:9
  13: <opendal::raw::oio::write::block_write::WriteBlockFuture as core::future::future::Future>::poll
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/raw/oio/write/block_write.rs:111:9
  14: futures_util::future::future::FutureExt::poll_unpin
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/futures-util-0.3.29/src/future/future/mod.rs:558:9
  15: <opendal::raw::futures_util::ConcurrentFutures<F> as futures_core::stream::Stream>::poll_next
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/raw/futures_util.rs:179:28
  16: futures_util::stream::stream::StreamExt::poll_next_unpin
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/futures-util-0.3.29/src/stream/stream/mod.rs:1638:9
  17: <opendal::raw::oio::write::block_write::BlockWriter<W> as opendal::raw::oio::write::api::Write>::poll_close
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/raw/oio/write/block_write.rs:262:57
  18: <opendal::raw::enum_utils::TwoWays<ONE,TWO> as opendal::raw::oio::write::api::Write>::poll_close
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/raw/enum_utils.rs:116:29
  19: <opendal::layers::error_context::ErrorContextWrapper<T> as opendal::raw::oio::write::api::Write>::poll_close
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/layers/error_context.rs:420:9
  20: <opendal::layers::complete::CompleteWriter<W> as opendal::raw::oio::write::api::Write>::poll_close
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/layers/complete.rs:728:16
  21: <opendal::raw::enum_utils::TwoWays<ONE,TWO> as opendal::raw::oio::write::api::Write>::poll_close
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/raw/enum_utils.rs:116:29
  22: <alloc::boxed::Box<T> as opendal::raw::oio::write::api::Write>::poll_close
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/raw/oio/write/api.rs:125:9
  23: <opendal::raw::oio::write::api::CloseFuture<W> as core::future::future::Future>::poll
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/raw/oio/write/api.rs:197:9
  24: opendal::types::writer::Writer::close::{{closure}}
             at /Users/sraizada/.cargo/git/checkouts/incubator-opendal-036c748dbc56dae9/00c6129/core/src/types/writer.rs:208:28
  25: opendal_test::multi_write_example::{{closure}}
             at ./src/main.rs:38:15
  26: opendal_test::main::{{closure}}
             at ./src/main.rs:21:29
  27: tokio::runtime::park::CachedParkThread::block_on::{{closure}}
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/park.rs:282:63
  28: tokio::runtime::coop::with_budget
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/coop.rs:107:5
  29: tokio::runtime::coop::budget
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/coop.rs:73:5
  30: tokio::runtime::park::CachedParkThread::block_on
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/park.rs:282:31
  31: tokio::runtime::context::blocking::BlockingRegionGuard::block_on
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/context/blocking.rs:66:9
  32: tokio::runtime::scheduler::multi_thread::MultiThread::block_on::{{closure}}
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/scheduler/multi_thread/mod.rs:87:13
  33: tokio::runtime::context::runtime::enter_runtime
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/context/runtime.rs:65:16
  34: tokio::runtime::scheduler::multi_thread::MultiThread::block_on
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/scheduler/multi_thread/mod.rs:86:9
  35: tokio::runtime::runtime::Runtime::block_on
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/runtime.rs:350:45
  36: opendal_test::main
             at ./src/main.rs:22:5
  37: core::ops::function::FnOnce::call_once
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/ops/function.rs:250:5
  38: std::sys_common::backtrace::__rust_begin_short_backtrace
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/sys_common/backtrace.rs:154:18
  39: std::rt::lang_start::{{closure}}
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/rt.rs:166:18
  40: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/ops/function.rs:284:13
  41: std::panicking::try::do_call
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/panicking.rs:504:40
  42: std::panicking::try
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/panicking.rs:468:19
  43: std::panic::catch_unwind
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/panic.rs:142:14
  44: std::rt::lang_start_internal::{{closure}}
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/rt.rs:148:48
  45: std::panicking::try::do_call
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/panicking.rs:504:40
  46: std::panicking::try
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/panicking.rs:468:19
  47: std::panic::catch_unwind
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/panic.rs:142:14
  48: std::rt::lang_start_internal
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/rt.rs:148:20
  49: std::rt::lang_start
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/rt.rs:165:17
  50: _main

 }
stack backtrace:
   0: rust_begin_unwind
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/std/src/panicking.rs:597:5
   1: core::panicking::panic_fmt
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/panicking.rs:72:14
   2: core::result::unwrap_failed
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/result.rs:1652:5
   3: core::result::Result<T,E>::unwrap
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/result.rs:1077:23
   4: opendal_test::main::{{closure}}
             at ./src/main.rs:21:5
   5: tokio::runtime::park::CachedParkThread::block_on::{{closure}}
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/park.rs:282:63
   6: tokio::runtime::coop::with_budget
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/coop.rs:107:5
   7: tokio::runtime::coop::budget
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/coop.rs:73:5
   8: tokio::runtime::park::CachedParkThread::block_on
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/park.rs:282:31
   9: tokio::runtime::context::blocking::BlockingRegionGuard::block_on
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/context/blocking.rs:66:9
  10: tokio::runtime::scheduler::multi_thread::MultiThread::block_on::{{closure}}
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/scheduler/multi_thread/mod.rs:87:13
  11: tokio::runtime::context::runtime::enter_runtime
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/context/runtime.rs:65:16
  12: tokio::runtime::scheduler::multi_thread::MultiThread::block_on
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/scheduler/multi_thread/mod.rs:86:9
  13: tokio::runtime::runtime::Runtime::block_on
             at /Users/sraizada/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.0/src/runtime/runtime.rs:350:45
  14: opendal_test::main
             at ./src/main.rs:22:5
  15: core::ops::function::FnOnce::call_once
             at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

Process finished with exit code 101

Seems we didn’t handle the case that body is empty.