puller: fix a bug that may cause error when replicate truncate table ddl

[asddongmen]

What problem does this PR solve?

Issue Number: close #11765

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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If you don't think this PR needs a release note then fill it with `None`.

[ti-chi-bot[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[asddongmen]

/test all

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 55.1708%. Comparing base (6fc5a49) to head (ecd1a3a). Report is 47 commits behind head on master.

Additional details and impacted files

| [Components](https://app.codecov.io/gh/pingcap/tiflow/pull/11772/components?src=pr&el=components&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | Coverage Δ | | |---|---|---| | [cdc](https://app.codecov.io/gh/pingcap/tiflow/pull/11772/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | `59.5992% <100.0000%> (-1.6109%)` | :arrow_down: | | [dm](https://app.codecov.io/gh/pingcap/tiflow/pull/11772/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | `50.0654% <ø> (-0.9801%)` | :arrow_down: | | [engine](https://app.codecov.io/gh/pingcap/tiflow/pull/11772/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | `53.2167% <ø> (-10.1572%)` | :arrow_down: | | [Flag](https://app.codecov.io/gh/pingcap/tiflow/pull/11772/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | Coverage Δ | | |---|---|---| | [unit](https://app.codecov.io/gh/pingcap/tiflow/pull/11772/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | `55.1708% <100.0000%> (-2.2954%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap#carryforward-flags-in-the-pull-request-comment) to find out more. ```diff @@ Coverage Diff @@ ## master #11772 +/- ## ================================================ - Coverage 57.4662% 55.1708% -2.2954% ================================================ Files 851 1002 +151 Lines 126462 137404 +10942 ================================================ + Hits 72673 75807 +3134 - Misses 48389 56056 +7667 - Partials 5400 5541 +141 ```

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[asddongmen]

/test all

[ti-chi-bot[bot]]

@asddongmen: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cdc-integration-kafka-test	1219b30eb4332226bc62cdea4bbf8e772e47efaa	link	true	/test cdc-integration-kafka-test
pull-cdc-integration-storage-test	1219b30eb4332226bc62cdea4bbf8e772e47efaa	link	true	/test cdc-integration-storage-test
pull-cdc-integration-mysql-test	1219b30eb4332226bc62cdea4bbf8e772e47efaa	link	true	/test cdc-integration-mysql-test
jenkins-ticdc/verify	1219b30eb4332226bc62cdea4bbf8e772e47efaa	link	true	/test verify
pull-cdc-integration-pulsar-test	1219b30eb4332226bc62cdea4bbf8e772e47efaa	link	true	/test cdc-integration-pulsar-test

Full PR test history. Your PR dashboard.

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