sentry-cli: Sourcemaps not working for server bundles

Hi

Environment

What version of the CLI and what OS are you running?

I use this command in our dockerfile: RUN curl -sL https://sentry.io/get-cli/ | bash

Steps to Reproduce

In dockerfile: RUN sentry-cli sourcemaps inject ${STATIC_FILES_PATH}

In GH Workflow:

sentry-cli releases new $SENTRY_RELEASE --project flow-node
sentry-cli releases files $SENTRY_RELEASE upload-sourcemaps ./sentry-static-files/server --dist $SENTRY_DIST --project flow-node --ignore *date-fns_locale*
sentry-cli releases finalize $SENTRY_RELEASE --project flow-node

Expected/Actual Result

We expect the sourcemaps to work for our app server bundles (bundled with webpack). They already work for our service files which aren’t bundled. They also work for our client bundles which have --url-prefix set though

Logs

The bundle contains //# sourceMappingURL=main.bef100.js.map but no longer any debugId. DebugIds not being injected was sovled in a previous issue that I created but it has perhaps resurfaced in a different form? https://github.com/getsentry/sentry-cli/issues/1681

In the sourcemap debugId seems to have been replaced by mappings? "mappings":"yKAIA,MAAMA,GAA0BC,EAAAA,EAAAA,IAAS,CAADC,SAAA,GAAAC,YAAA,6BAAAC,QAAAC,GAAA,MAAAC,EAAA,KAAAC,QAAAF,GAAA,gBAAAH,SAAAI,MAAAE,EAAAA,EAAAF,EAAA,EAAAG,YACvCA,IACQ,wRACPC,aAAAL,GAAA,MAAAC,EAAA,KAAAC,QAAAF,GAAA,YAAAH,....