owner(ticdc): fix changefeed backoff (#9687)

[ti-chi-bot]

This is an automated cherry-pick of #9687

What problem does this PR solve?

Issue Number: close #9697

What is changed and how it works?

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: CharlesCheung96

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[CharlesCheung96]

/retest