[BEAM-9444] GCP Library BOM as a Map

[suztomo]

Using GCP Libraries BOM to set GCP related libraries.

---

Thank you for your contribution! Follow this checklist to help us incorporate your contribution quickly and easily:

• Choose reviewer(s) and mention them in a comment (R: @username).
• Format the pull request title like [BEAM-XXX] Fixes bug in ApproximateQuantiles, where you replace BEAM-XXX with the appropriate JIRA issue, if applicable. This will automatically link the pull request to the issue.
• Update CHANGES.md with noteworthy changes.
• If this contribution is large, please file an Apache Individual Contributor License Agreement.

See the Contributor Guide for more tips on how to make review process smoother.

Post-Commit Tests Status (on master branch)

Lang	SDK	Apex	Dataflow	Flink	Gearpump	Samza	Spark
Go		---	---		---	---
Java
Python		---			---	---
XLang	---	---	---		---	---

Pre-Commit Tests Status (on master branch)

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

See .test-infra/jenkins/README for trigger phrase, status and link of all Jenkins jobs.

[iemejia]

retest this please

[iemejia]

retest this please

[suztomo]

Java precommit check failed on
org.apache.beam.runners.flink.FlinkSavepointTest.testSavepointRestorePortable “test timed out after 60 seconds“. This seems Transient failure.

[suztomo]

@iemejia Thank you.

[suztomo]

This idea was a bad idea; a hack on top of another hack.