cdc: ignore redo log meta regress for restarting

[hicqu]

What problem does this PR solve?

Issue Number: ref #6277

What is changed and how it works?

After #6313 is merged, cdc instance can panic if redo meta regresses. It can really happend when a cdc instance restarts.

This PR ignored redo meta regress.

Check List

Tests

• Unit test

Questions

Will it cause performance regression or break compatibility?

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

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• CharlesCheung96
• zhaoxinyu

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[codecov-commenter]

Codecov Report

Merging #6320 (8748831) into master (bcb773a) will increase coverage by 6.3709%.
The diff coverage is 74.2424%.

Flag	Coverage Δ
cdc	66.0140% <72.1562%> (+0.1401%)	⬆️
dm	?
engine	63.4827% <78.8104%> (+0.3859%)	⬆️

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

@@               Coverage Diff                @@
##             master      #6320        +/-   ##
================================================
+ Coverage   59.0443%   65.4152%   +6.3709%     
================================================
  Files           736        507       -229     
  Lines         85346      46295     -39051     
================================================
- Hits          50392      30284     -20108     
+ Misses        30483      13630     -16853     
+ Partials       4471       2381      -2090     

[hicqu]

/run-all-tests

[liuzix]

/merge

[ti-chi-bot]

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

Commit hash: 8748831

[hicqu]

/run-kafka-integration-test

[hicqu]

/run-all-tests

[hicqu]

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

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #6327.

[hicqu]

It's closed as it doesn't fix the problem at root exactly. It's replaced by #6321 .