Bug 40869: Temporarily set obfs4 to a fixed commit

Merge Info

• Related Issues

  • #40869 (closed)

• Backport Timeline

  • Immediate - patchsets for critical bug fixes or other major blocker (e.g. fixes for a 0-day exploit) OR patchsets with trivial changes which do not need testing (e.g. fixes for typos or fixes easily verified in a local developer build)
  • Next Minor Stable Release - patchset that needs to be verified in nightly before backport
  • Eventually - patchset that needs to be verified in alpha before backport
  • No Backport - patchset for the next major stable

• Issue Tracking

  • Link resolved issues with appropriate Release Prep issue for changelog generation

Change Description

To avoid broken nightly builds, we set obfs4 nightly to a fixed commit,
until the changes required by the renaming from obfs4 to lyrebird are
done.

/cc @meskio