sink(ticdc): support for multiple topic dispatch

[Rustin170506]

What problem does this PR solve?

Issue Number: ref #4423

What is changed and how it works?

Make producer interface support for multiple topic dispatch.

Check List

Tests

• Unit test

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
  Side effects

None

Related changes

None

Release note

None

[ti-chi-bot]

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[Rustin170506]

/run-all-tests

[dianqihanwangzi]

/run-verify-ci

[Rustin170506]

/run-all-tests

[codecov-commenter]

Codecov Report

Merging #4457 (f9c1537) into master (9607554) will decrease coverage by 0.2346%.
The diff coverage is 36.0975%.

Flag	Coverage Δ
cdc	59.9978% <42.6229%> (+0.0756%)	⬆️
dm	51.5704% <33.3333%> (-0.4584%)	⬇️

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

@@               Coverage Diff                @@
##             master      #4457        +/-   ##
================================================
- Coverage   55.6402%   55.4055%   -0.2347%     
================================================
  Files           494        499         +5     
  Lines         61283      61696       +413     
================================================
+ Hits          34098      34183        +85     
- Misses        23750      24076       +326     
- Partials       3435       3437         +2     

[ti-chi-bot]

@hi-rustin: PR needs rebase.

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