sink: add barrier in underlying sink to support accruate stop (#2417)

[ti-chi-bot]

This is an automated cherry-pick of #2417

What problem does this PR solve?

Fix #2230

This PR introduces a new Barrier API in sink interface, which is a synchronous function to wait all events to be flushed in underlying sink, note once Barrier is called, the resolved ts can't be pushed until the Barrier call returns.

We call Barrier when table sink is closing (via the Close method of table sink), and before Barrier is called, we draw back all existing events in sink buffer.

Note the cherry-pick cannot be merged into release-4.0, release-5.0 until new owner is enabled in these branches.

What is changed and how it works?

• The Barrier implementation
  • MySQL sink: wait checkpoint-ts to reach max received resolved-ts
  • MQ sink: TODO
• Drawback mechanism in buffer sink
  • Buffer sink stores rows by table in memory, and emit rows to underlying sink only resolved ts is forwarded.
  • Hook a channel from sink manager to notify buffer sink to draw back rows of a table, and wait callback

Check List

Tests

• Unit test
• Integration test

Release note

Fix a bug that multiple processors could write the same table when this table is re-scheduling

[ti-chi-bot]

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[amyangfei]

/merge

[ti-chi-bot]

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

Commit hash: a68dc14

[ti-chi-bot]

@ti-chi-bot: Your PR was out of date, I have automatically updated it for you.

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[amyangfei]

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

[codecov-commenter]

Codecov Report

Merging #2495 (25a2128) into release-4.0 (753073a) will increase coverage by 1.2600%.
The diff coverage is 57.4182%.

@@                 Coverage Diff                 @@
##           release-4.0      #2495        +/-   ##
===================================================
+ Coverage      53.7661%   55.0261%   +1.2600%     
===================================================
  Files              153        162         +9     
  Lines            15958      19478      +3520     
===================================================
+ Hits              8580      10718      +2138     
- Misses            6475       7738      +1263     
- Partials           903       1022       +119