Support Flink Monitoring

[peachisai]

Support Flink monitoring via OpenTelemetry metrics.
I have completed some parts of the project.

My questions are:
1.Do I need to write a SWIP proposal?
2.I believe there is a new menu item. What do you think about the name "Data Processing Engine"?

[wu-sheng]

1.Do I need to write a SWIP proposal?

Yes, next ID is 9. You could reserve that through a PR.

2.I believe there is a new menu item. What do you think about the name "Data Processing Engine"?

I am good for that.

[wu-sheng]

Anything to update here? @peachisai

[peachisai]

Anything to update here? @peachisai

Yes, I am working on that.

[wu-sheng]

SWIP -> #13167

[wu-sheng]

PR -> #13172