*(ticdc): add integration test for safe mode

[lidezhu]

What problem does this PR solve?

Issue Number: close #11679

What is changed and how it works?

Add an integration test for safe mode.

Check List

Tests

• No code

Questions

Will it cause performance regression or break compatibility?

Do you need to update user documentation, design documentation or monitoring documentation?

Release note

None

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.1439%. Comparing base (76ebb37) to head (b0ce002).
Report is 1 commits behind head on master.

Additional details and impacted files

Components	Coverage Δ
cdc	59.6048% <ø> (-0.0135%)	⬇️
dm	50.0616% <ø> (-0.0097%)	⬇️
engine	53.2223% <ø> (+0.0225%)	⬆️

Flag	Coverage Δ
unit	55.1439% <ø> (-0.0074%)	⬇️

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

@@               Coverage Diff                @@
##             master     #11678        +/-   ##
================================================
- Coverage   55.1512%   55.1439%   -0.0074%     
================================================
  Files          1001       1001                
  Lines        136472     136472                
================================================
- Hits          75266      75256        -10     
- Misses        55694      55705        +11     
+ Partials       5512       5511         -1     

[lidezhu]

/test cdc-integration-pulsar-test

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: asddongmen, wk989898

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Needs approval from an approver in each of these files:

• OWNERS [asddongmen,wk989898]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-10-23 06:10:14.847972603 +0000 UTC m=+417815.544763206: ☑️ agreed by asddongmen.
• 2024-10-23 06:47:30.018607727 +0000 UTC m=+420050.715398355: ☑️ agreed by wk989898.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #11682.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #11683.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #11684.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #11685.