executor: fix the issue that tiflash cop throw exception Income key ranges is empty for region: 211 (#52763)

[ti-chi-bot]

This is an automated cherry-pick of #52763

What problem does this PR solve?

Issue Number: close #52762

Problem Summary:

What changed and how does it work?

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

[SeaRise]

/cherry-pick-invite

[ti-chi-bot]

@SeaRise you're already a collaborator in repo ti-chi-bot/tidb

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-7.1@f4faa50). Click here to learn what that means.
The diff coverage is 100.0000%.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.1     #52773   +/-   ##
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  Coverage               ?   73.4278%           
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  Files                  ?       1211           
  Lines                  ?     380105           
  Branches               ?          0           
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  Hits                   ?     279103           
  Misses                 ?      83175           
  Partials               ?      17827           

[windtalker]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: SeaRise, windtalker

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-04-19 16:43:07.869161858 +0000 UTC m=+615606.980208308: ☑️ agreed by SeaRise.
• 2024-04-22 06:18:22.786095728 +0000 UTC m=+837321.897142162: ☑️ agreed by windtalker.