feat(sink): add mutation to add sink schema

[wenym1]

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What's changed and what's your intention?

Checklist

• I have written necessary rustdoc comments.
• I have added necessary unit tests and integration tests.
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• I have added fuzzing tests or opened an issue to track them.
• My PR contains breaking changes.
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Documentation

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Release note

[wenym1]

• feat(sink): add mutation to add sink schema #22661 👈 (View in Graphite)
• feat(sink): trigger sink schema change on upstream table add columns #22660
• feat(sink): support SQL syntax to create sink with auto schema refresh from upstream table #22611
• main

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