split-table: Support split-table in mysql sink and ddl test for split table

[hongyunyan]

What problem does this PR solve?

Issue Number: close #xxx

What is changed and how it works?

1. Support split-table in mysql sink
2. add ddl test for split table

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Questions

Will it cause performance regression or break compatibility?

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

Release note

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lidezhu

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-12 07:39:05.937374661 +0000 UTC m=+428588.333596720: ☑️ agreed by lidezhu.

[ti-chi-bot]

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