owner(cdc): clean up metrics when owner resigns

[liuzix]

What problem does this PR solve?

Issue Number: close #4774

What is changed and how it works?

• Owner must clean up its metrics when it stops.

Check List

Tests

• Manual test (add detailed scripts or steps below)

Related changes

• Need to cherry-pick to the release branch

Release note

Fix stale metrics data when TiCDC owner switches.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• amyangfei
• overvenus

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[liuzix]

/run-leak-tests
/run-integration-tests

[codecov-commenter]

Codecov Report

Merging #4998 (00dfeb5) into master (687e248) will decrease coverage by 0.3347%.
The diff coverage is 51.7304%.

Flag	Coverage Δ
cdc	61.0971% <43.7570%> (+0.4984%)	⬆️
dm	51.5158% <85.6459%> (-0.9537%)	⬇️

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

@@               Coverage Diff                @@
##             master      #4998        +/-   ##
================================================
- Coverage   56.1240%   55.7892%   -0.3348%     
================================================
  Files           522        523         +1     
  Lines         65325      66744      +1419     
================================================
+ Hits          36663      37236       +573     
- Misses        25094      25824       +730     
- Partials       3568       3684       +116     

[amyangfei]

/merge

[overvenus]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 00dfeb5

[ti-chi-bot]

@liuzix: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #5043.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #5044.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #5045.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #5046.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #5047.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #5048.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #5049.