sink(ticdc): add parameter to enable watermark events in the Debezium protocol

[wk989898]

What problem does this PR solve?

Issue Number: close #11876

What is changed and how it works?

We use EnableTiDBExtension to control whether to encode watermark event. After that, it will be up to users to set.

Check List

Tests

• Unit test
• Integration 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`.

[wk989898]

/retest

[wk989898]

/retest

[wk989898]

/retest

[wk989898]

/retest

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: 3AceShowHand, hongyunyan

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-01-03 02:29:29.658103102 +0000 UTC m=+663105.014107672: ☑️ agreed by hongyunyan.
• 2025-01-03 02:35:23.552466935 +0000 UTC m=+663458.908471470: ☑️ agreed by 3AceShowHand.

[wk989898]

/retest

[wk989898]

/retest

[ti-chi-bot]

@wk989898: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-dm-integration-test	9561680	link	unknown	/test pull-dm-integration-test

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