[BEAM-10807] Add scheduled mail with metrics report

[TobKed]

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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	Whitespace
Non-portable
Portable	---		---	---	---

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GitHub Actions Tests Status (on master branch)

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[TobKed]

generated html file: https://storage.googleapis.com/beam-wheel-test-bucket-uscentral1/metrics-report/beam-metrics_report.html

[kamilwu]

Could you provide some information on what I need to know before creating a dashboard? How should I name fields in my measurement? Is there anything else I need to do if want to have my results in the report?

I think Apache Beam Wiki would be a perfect place for those kind of things.

[TobKed]

Please continue discussion here: https://github.com/apache/beam/pull/12685