Use PipelineOptions for constructing BigQueryWrapper when estimating BigQuery table size (#26622)

[dopieralad]

This Pull Request addresses issue #26622.

Changes made:

1. Added factory method to BigQueryWrapper that allows for specifying PipelineOptions for which the Google Cloud Platform credentials are retrieved for the underlying BigQuery client,
2. Passed appropriate PipelineOptions to BigQueryWrapper when estimating BigQuery table size.

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[Abacn]

Thanks for the catch!

[Abacn]

For the Format check fail, run this command to fix:

# Run from root beam repo dir
pip install yapf==0.29.0
git diff HEAD^ --name-only | grep "\.py$" | xargs yapf --in-place

[Abacn]

waiting on author

[codecov]

Codecov Report

Merging #26662 (77c2b02) into master (86f56e9) will decrease coverage by 0.14%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master   #26662      +/-   ##
==========================================
- Coverage   72.06%   71.93%   -0.14%     
==========================================
  Files         745      747       +2     
  Lines      101200   101467     +267     
==========================================
+ Hits        72930    72986      +56     
- Misses      26810    27021     +211     
  Partials     1460     1460              

Flag	Coverage Δ
python	80.86% <100.00%> (-0.24%)	⬇️

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

Impacted Files	Coverage Δ
sdks/python/apache_beam/io/gcp/bigquery.py	69.74% <100.00%> (ø)
sdks/python/apache_beam/io/gcp/bigquery_tools.py	74.82% <100.00%> (+0.20%)	⬆️

... and 17 files with indirect coverage changes

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[dopieralad]

I've reformatted the code as you suggested 🙂

[Abacn]

Run Python_Runners PreCommit

[Abacn]

Thank you!