sink (ticdc): disable batch update dml when downstream is mysql (#8452)

[ti-chi-bot]

This is an automated cherry-pick of #8452

What problem does this PR solve?

Issue Number: close #8420

What is changed and how it works?

Check List

Tests

• Unit test
• Manual test (add detailed scripts or steps below)

Questions

Will it cause performance regression or break compatibility?

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

Release note

Fix a bug that may causes data loss when downstrem is mysql.

[ti-chi-bot]

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[asddongmen]

/merge

[ti-chi-bot]

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

Commit hash: 8b7508f

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5@63372e3). Click here to learn what that means.
The diff coverage is n/a.

❗ Current head 1af7d96 differs from pull request most recent head 8b7508f. Consider uploading reports for the commit 8b7508f to get more accurate results

Additional details and impacted files

Flag	Coverage Δ
cdc	66.7023% <0.0000%> (?)
dm	55.0769% <0.0000%> (?)
engine	66.7313% <0.0000%> (?)

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

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