[BEAM-13982] Added output of logging for python E2E pytests

[ryanthompson591]

Adds two options to output logs for python E2E tests.

log_cli=true -- Logs all logging messages to the command line (or jenkin's captures when run on jenkins)
log_level=INFO -- Sets log level to info and above.

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[ryanthompson591]

R: @tvalentyn

[asf-ci]

Can one of the admins verify this patch?

[codecov]

Codecov Report

Merging #17637 (3e82cfd) into master (f30e4e5) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #17637   +/-   ##
=======================================
  Coverage   73.95%   73.95%           
=======================================
  Files         693      693           
  Lines       91720    91721    +1     
=======================================
+ Hits        67832    67835    +3     
+ Misses      22639    22637    -2     
  Partials     1249     1249           

Flag	Coverage Δ
python	83.71% <ø> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
.../python/apache_beam/testing/test_stream_service.py	88.09% <0.00%> (-4.77%)	⬇️
...ache_beam/runners/dataflow/test_dataflow_runner.py	29.62% <0.00%> (-3.03%)	⬇️
...che_beam/runners/interactive/interactive_runner.py	89.20% <0.00%> (-1.44%)	⬇️
setup.py	0.00% <0.00%> (ø)
...hon/apache_beam/runners/worker/bundle_processor.py	93.68% <0.00%> (ø)
...on/apache_beam/runners/dataflow/dataflow_runner.py	83.00% <0.00%> (+0.04%)	⬆️
sdks/python/apache_beam/io/gcp/bigquery.py	63.98% <0.00%> (+0.11%)	⬆️
...ks/python/apache_beam/runners/worker/sdk_worker.py	89.09% <0.00%> (+0.15%)	⬆️
sdks/python/apache_beam/io/source_test_utils.py	89.40% <0.00%> (+1.38%)	⬆️

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[tvalentyn]

Run RAT PreCommit

[tvalentyn]

Run Python 3.8 PostCommit

[tvalentyn]

Run Python 3.8 PostCommit

[ryanthompson591]

AFAICT the postcommit runtime errors have anything to do with this PR.