infoschema: fix flashback integration test to make it more stable

[tiancaiamao]

What problem does this PR solve?

Issue Number: close #53158

Problem Summary:

What changed and how does it work?

Retry on this kind of error:

region 40 is in flashback progress, FlashbackStartTS is 449658828228919302

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 @tiancaiamao. Thanks for your PR.

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[Defined2014]

LGTM, first let ci work properly.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.7967%. Comparing base (f304f04) to head (ca0fcdf).
Report is 16 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #53179        +/-   ##
================================================
+ Coverage   72.4716%   74.7967%   +2.3251%     
================================================
  Files          1491       1492         +1     
  Lines        429012     433690      +4678     
================================================
+ Hits         310912     324386     +13474     
+ Misses        98878      89378      -9500     
- Partials      19222      19926       +704     

Flag	Coverage Δ
integration	49.2339% <100.0000%> (?)
unit	71.3505% <0.0000%> (-0.0136%)	⬇️

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

Components	Coverage Δ
dumpling	53.9957% <ø> (ø)
parser	∅ <ø> (∅)
br	50.1740% <ø> (+8.7304%)	⬆️

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-05-10 13:03:08.662403841 +0000 UTC m=+1226342.419539415: ☑️ agreed by Defined2014.
• 2024-05-10 14:18:59.604583015 +0000 UTC m=+1230893.361718589: ☑️ agreed by hawkingrei.

[GMHDBJD]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Defined2014, GMHDBJD, hawkingrei

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