syncer: update binlog filename when receive fake rotate event (#1848)

[ti-chi-bot]

This is an automated cherry-pick of #1848

What problem does this PR solve?

close #1830

What is changed and how it works?

as title, but we only update location binlog filename when enable GTID mode.

Check List

Tests

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

Code changes

• Has exported function/method change

Side effects

• Increased code complexity

Related changes

• Need to cherry-pick to the release branch
• Need to be included in the release note

[ti-chi-bot]

[REVIEW NOTIFICATION]

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• lance6716

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[Ehco1996]

/merge

[ti-chi-bot]

@Ehco1996: /merge is only allowed for the committers, you can assign this pull request to the committer in list by filling /assign @committer in the comment to help merge this pull request.

In response to this:

/merge

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[lance6716]

/merge

[ti-chi-bot]

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

Commit hash: 7816334