sorter(ticdc): rename files for better readability

[overvenus]

What problem does this PR solve?

Issue Number: ref #4631

Check List

Tests

• Unit test
• Integration test

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• 3AceShowHand
• zhaoxinyu

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[codecov-commenter]

Codecov Report

Merging #4766 (f3ddd5f) into master (9607554) will increase coverage by 0.0580%.
The diff coverage is 54.1284%.

Flag	Coverage Δ
cdc	59.8167% <54.1284%> (-0.1056%)	⬇️
dm	52.2945% <ø> (+0.2656%)	⬆️

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

@@               Coverage Diff                @@
##             master      #4766        +/-   ##
================================================
+ Coverage   55.6402%   55.6982%   +0.0580%     
================================================
  Files           494        521        +27     
  Lines         61283      64634      +3351     
================================================
+ Hits          34098      36000      +1902     
- Misses        23750      25112      +1362     
- Partials       3435       3522        +87     

[overvenus]

/merge

[ti-chi-bot]

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

Commit hash: 918af5f

[overvenus]

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

[overvenus]

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

[overvenus]

/run-kafka-integration-test

[overvenus]

/run-kafka-integration-test

[overvenus]

/run-kafka-integration-test

[overvenus]

/merge

[ti-chi-bot]

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

Commit hash: 55dbd20

[overvenus]

/merge

[ti-chi-bot]

@overvenus: Your PR was out of date, I have automatically updated it for you.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

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