flutter-action: Action broke and doesn't work at all

I use this action in many projects of mine and it works fine. But there’s this one project at work where it just broke and remains in this sad state.

That’s how I use the action:

- name: Install Flutter
  uses: subosito/flutter-action@v2.5.0
  with:
    channel: ${{ matrix.channel }}
    flutter-version: ${{ matrix.version }}

Nothing fancy. Newest version doesn’t work as well. And below are the logs from this action’s step:

Run subosito/flutter-action@v2.5.0
  with:
    flutter-version: [2](https://github.com/leancodepl/REDACTED/runs/7732114460?check_suite_focus=true#step:3:2).10.5
    cache-key: flutter-:os:-:arch:-:channel:-:version:-:hash:
    cache-path: /opt/hostedtoolcache/flutter
    architecture: X6[4](https://github.com/leancodepl/REDACTED/runs/7732114460?check_suite_focus=true#step:3:4)
Run $GITHUB_ACTION_PATH/setup.sh -c "/opt/hostedtoolcache/flutter"  2.10.[5](https://github.com/leancodepl/REDACTED/runs/7732114460?check_suite_focus=true#step:3:5) X[6](https://github.com/leancodepl/REDACTED/runs/7732114460?check_suite_focus=true#step:3:6)4
  $GITHUB_ACTION_PATH/setup.sh -c "/opt/hostedtoolcache/flutter"  2.10.5 X64
  shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0}
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100   19[7](https://github.com/leancodepl/REDACTED/runs/7732114460?check_suite_focus=true#step:3:8)  100   1[9](https://github.com/leancodepl/REDACTED/runs/7732114460?check_suite_focus=true#step:3:10)7    0     0   4020      0 --:--:-- --:--:-- --:--:--  4020
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors
2.10.5:X64:x64|null:null:x64

I remember that it was working fine, then I enabled cache using cache: true argument. Something broke then, so I removed that cache: true and was hoping it would start working again, but it didn’t.

I’ve also cleared all the caches:

$ gh api /repos/leancodepl/REDACTED/actions/caches
{
  "total_count": 0,
  "actions_caches": []
}