[GH] (texera/gh-readonly-queue/main/pr-6669-429be110a72ae9967f39dcc41efa75321467c328): Workflow run "Required Checks" failed!

[GitBox <gi...@apache.org>]

The GitHub Actions job "Required Checks" on texera.git/gh-readonly-queue/main/pr-6669-429be110a72ae9967f39dcc41efa75321467c328 has failed.
Run started by GitHub user aglinxinyuan (triggered by aglinxinyuan).

Head commit for run:
4b1e8bd98c813eb70ca7f89803090e819b592fb0 / Matthew B. <mg...@uci.edu>
test(pyamber): add unit tests for stoppable_queue_blocking_thread (#6669)

### What changes were proposed in this PR?
- Add unit tests for StoppableQueueBlockingRunnable.
- Cover stop() enqueuing the RUNNABLE_STOP sentinel and
interruptible_get() raising InterruptRunnable only on that exact
control.
- Cover run() processing entries until interrupted and always calling
post_stop(), including on unexpected errors.
### Any related issues, documentation, discussions?
Closes: #6668
### How was this PR tested?
- Run: `cd amber && python -m pytest
src/test/python/core/util/stoppable/test_stoppable_queue_blocking_thread.py`,
expect all 7 tests passing.
- Test-only change; no production code is modified.
### Was this PR authored or co-authored using generative AI tooling?
Co-authored with Claude Opus 4.8 in compliance with ASF

---------

Signed-off-by: Xinyuan Lin <xi...@uci.edu>
Co-authored-by: Xinyuan Lin <xi...@uci.edu>
Co-authored-by: Copilot Autofix powered by AI <17...@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 <no...@anthropic.com>

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