workerpool: limit the rate to output deadlock warning (#3775)

[ti-chi-bot]

This is an automated cherry-pick of #3775

What problem does this PR solve?

Close https://github.com/pingcap/ticdc/issues/2706

What is changed and how it works?

Ratelimit deadlock log.

Check List

Tests

• Manual test (add detailed scripts or steps below)

Related changes

• Need to cherry-pick to the release branch

Release note

Reduce log "synchronize is taking too long, report a bug" in some cases.

[ti-chi-bot]

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[overvenus]

/merge

[ti-chi-bot]

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

Commit hash: 2fc8dde

[ti-chi-bot]

@ti-chi-bot: Your PR was out of date, I have automatically updated it for you.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

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[codecov-commenter]

Codecov Report

Merging #3796 (5262b11) into release-4.0 (753073a) will increase coverage by 3.2697%.
The diff coverage is 67.5675%.

@@                 Coverage Diff                 @@
##           release-4.0      #3796        +/-   ##
===================================================
+ Coverage      53.7661%   57.0358%   +3.2697%     
===================================================
  Files              153        170        +17     
  Lines            15958      19763      +3805     
===================================================
+ Hits              8580      11272      +2692     
- Misses            6475       7431       +956     
- Partials           903       1060       +157     

[overvenus]

/run-kafka-integration-test
/run-integration-tests