br: fix ci fail due to unexpected gc safepoint

[RidRisR]

What problem does this PR solve?

Issue Number: close #59604

Problem Summary:

The CI test idc-jenkins-ci-tidb/check_dev_2 may fail when checking safepoint.
This is because there is gc safepoint registered by other concurrent test.

What changed and how does it work?

Only check the gc safepoint registered by current test.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[tiprow]

Hi @RidRisR. Thanks for your PR.

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 74.6523%. Comparing base (8059751) to head (4474984).
Report is 9 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #59605        +/-   ##
================================================
+ Coverage   73.0128%   74.6523%   +1.6395%     
================================================
  Files          1694       1710        +16     
  Lines        468330     471227      +2897     
================================================
+ Hits         341941     351782      +9841     
+ Misses       105359      97588      -7771     
- Partials      21030      21857       +827     

Flag	Coverage Δ
integration	46.1098% <0.0000%> (?)
unit	72.2244% <0.0000%> (+0.0093%)	⬆️

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

Components	Coverage Δ
dumpling	52.6910% <ø> (ø)
parser	∅ <ø> (∅)
br	61.5143% <0.0000%> (+16.2916%)	⬆️

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: BornChanger, YuJuncen

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Needs approval from an approver in each of these files:

• OWNERS [BornChanger,YuJuncen]
• br/OWNERS [BornChanger,YuJuncen]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-18 10:07:44.732916665 +0000 UTC m=+955907.129138740: ☑️ agreed by YuJuncen.
• 2025-02-18 10:20:56.619916136 +0000 UTC m=+956699.016138195: ☑️ agreed by BornChanger.