[BEAM-14467] Fix bug where run_pytest.sh does not elevate errors raised in no_xdist tests

[TheNeuralBit]

Verified this in #17685, see https://github.com/apache/beam/actions/runs/2335085262

GitHub Actions Tests Status (on master branch)

See CI.md for more information about GitHub Actions CI.

[TheNeuralBit]

R: @Abacn

[codecov]

Codecov Report

Merging #17687 (a5f3f3f) into master (03c3c36) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #17687      +/-   ##
==========================================
- Coverage   74.00%   74.00%   -0.01%     
==========================================
  Files         695      695              
  Lines       91798    91798              
==========================================
- Hits        67939    67936       -3     
- Misses      22611    22614       +3     
  Partials     1248     1248              

Flag	Coverage Δ
python	83.75% <ø> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
sdks/python/apache_beam/internal/gcp/auth.py	73.33% <0.00%> (-5.34%)	⬇️
sdks/python/apache_beam/utils/interactive_utils.py	95.12% <0.00%> (-2.44%)	⬇️
...hon/apache_beam/runners/direct/test_stream_impl.py	93.28% <0.00%> (-0.75%)	⬇️
sdks/python/apache_beam/runners/direct/executor.py	96.46% <0.00%> (-0.55%)	⬇️
sdks/python/apache_beam/transforms/combiners.py	93.05% <0.00%> (-0.39%)	⬇️
...ks/python/apache_beam/runners/worker/sdk_worker.py	88.94% <0.00%> (-0.16%)	⬇️
...hon/apache_beam/runners/worker/bundle_processor.py	93.80% <0.00%> (+0.12%)	⬆️
...ks/python/apache_beam/runners/worker/data_plane.py	88.13% <0.00%> (+0.56%)	⬆️
sdks/python/apache_beam/io/localfilesystem.py	91.72% <0.00%> (+0.75%)	⬆️
sdks/python/apache_beam/coders/typecoders.py	93.67% <0.00%> (+1.26%)	⬆️
... and 1 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 03c3c36...a5f3f3f. Read the comment docs.

[Abacn]

LGTM

0 is True in shell, what a mess!