test(ticdc): add processor etcd worker delay fail point

[sdojjy]

What problem does this PR solve?

Issue Number: ref #5326

What is changed and how it works?

add processor etcd worker delay fail point

Check List

Tests

• Unit test
• Integration test

Release note

`None`.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• CharlesCheung96
• overvenus

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[codecov-commenter]

Codecov Report

Merging #5426 (1c336c6) into master (687e248) will decrease coverage by 0.2144%.
The diff coverage is 52.2479%.

Flag	Coverage Δ
cdc	60.9104% <52.2479%> (+0.3118%)	⬆️
dm	51.9943% <ø> (-0.4752%)	⬇️

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

@@               Coverage Diff                @@
##             master      #5426        +/-   ##
================================================
- Coverage   56.1240%   55.9095%   -0.2145%     
================================================
  Files           522        529         +7     
  Lines         65325      69684      +4359     
================================================
+ Hits          36663      38960      +2297     
- Misses        25094      26993      +1899     
- Partials       3568       3731       +163     

[ti-chi-bot]

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[asddongmen]

/merge

[ti-chi-bot]

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

Commit hash: 6bc6062

[sdojjy]

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

[Rustin170506]

A tiny issue.

[Rustin170506]

/unhold

/merge

[ti-chi-bot]

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

Commit hash: 64cd3c6

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #5443.