Ensure WRITE_TRUNCATE BigQuery loads to the same table are processed together.

[robertwb]

This fixes #24535 and fixes #23306 in a streaming-update compatible way.

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[johnjcasey]

run python precommit

[ahmedabu98]

Run Python 3.7 PostCommit

[ahmedabu98]

Let's pass the side inputs into process_one, this is probably causing the failing tests in https://ci-beam.apache.org/job/beam_PreCommit_Python_Phrase/3289/testReport/

[robertwb]

Yeah, I fixed this, but not it's failing on (unrelated-looking) proto issues. Trying to run tests again...

[codecov]

Codecov Report

Merging #24536 (7ba6866) into master (cb329e4) will increase coverage by 0.24%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##           master   #24536      +/-   ##
==========================================
+ Coverage   73.37%   73.61%   +0.24%     
==========================================
  Files         719      721       +2     
  Lines       97209    98318    +1109     
==========================================
+ Hits        71323    72380    +1057     
- Misses      24538    24590      +52     
  Partials     1348     1348              

Flag	Coverage Δ
python	83.18% <80.00%> (+0.19%)	⬆️

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

Impacted Files	Coverage Δ
...s/python/apache_beam/io/gcp/bigquery_file_loads.py	87.16% <80.00%> (-0.25%)	⬇️
sdks/python/apache_beam/typehints/schemas.py	88.07% <0.00%> (-0.89%)	⬇️
...apache_beam/runners/dataflow/internal/apiclient.py	76.72% <0.00%> (-0.63%)	⬇️
...s/python/apache_beam/runners/portability/stager.py	87.04% <0.00%> (-0.18%)	⬇️
...dks/python/apache_beam/options/pipeline_options.py	93.95% <0.00%> (-0.02%)	⬇️
sdks/python/apache_beam/typehints/row_type.py	100.00% <0.00%> (ø)
...s/python/apache_beam/typehints/testing/__init__.py	100.00% <0.00%> (ø)
...python/apache_beam/typehints/testing/strategies.py	100.00% <0.00%> (ø)
...hon/apache_beam/runners/worker/bundle_processor.py	93.67% <0.00%> (+0.12%)	⬆️
sdks/python/apache_beam/runners/direct/executor.py	97.01% <0.00%> (+0.54%)	⬆️
... and 9 more

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[johnjcasey]

it looks like proto generation is broken for the python tests

[ahmedabu98]

retest this please

[kennknowles]

Setting aside GHA (which I don't know if they could have other sources of instability) the scan at https://scans.gradle.com/s/ivqiu46gmopb6 for the Jenkins run says that :sdks:python:test-suites:tox:py310:testPy310Cloud failed

[robertwb]

Run Python PreCommit

[robertwb]

Run Python PreCommit

[robertwb]

All the Jenkins tests pass, the github actions issues are unrelated.

[ahmedabu98]

LGTM