[BEAM-10647] Fixes get_query_location bug in BigQueryWrapper

[galuszkak]

This enables to look for location in BigQueryWrapper for first available referenced table for the user. If you are querying authorised view, you may end up with permission error of accessing referenced table that is in authorised view and be unable to retrieve location, so you should look on next available table for You that you should have permission.

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Post-Commit Tests Status (on master branch)

Lang	SDK	Dataflow	Flink	Samza	Spark	Twister2
Go		---		---		---
Java
Python				---		---
XLang		---		---		---

Pre-Commit Tests Status (on master branch)

---	Java	Python	Go	Website
Non-portable
Portable	---		---	---

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GitHub Actions Tests Status (on master branch)

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[galuszkak]

R: @robertwb@apilloud

[apilloud]

LGTM, but I'm not familiar with Python style, particularly around optional imports, so I'll defer to @pabloem on this.

I believe we recently received a report of this problem on the Java SDK as well. It might be nice to have a integration test, as it is possible this behavior changed on BigQuery. Thanks for taking the time to track it down!

cc: @chamikaramj

[galuszkak]

@apilloud I will address that one comment. Let me know if other things make sense.

[apilloud]

Jenkins is having issues right now (see https://issues.apache.org/jira/browse/INFRA-20649) but will merge this when it is fixed. Please remind me if I forget!

[galuszkak]

@apilloud I think Jenkins is fixed.

Thanks!

[galuszkak]

I've looked on Linter error but it looks that is unrelated to my changes, and error was introduced in #12476 by @robertwb

[apilloud]

Thanks. The other failure is BEAM-8912.

[pabloem]

thanks - this looks great fwiw : )