puller: fix retry logic when check store version failed (#11903)

[ti-chi-bot]

This is an automated cherry-pick of #11903

What problem does this PR solve?

Issue Number: close #11766

What is changed and how it works?

Change the retry logic to reload region when client.GetStore failed.

Check List

Tests

• Unit test

Questions

Will it cause performance regression or break compatibility?

Do you need to update user documentation, design documentation or monitoring documentation?

Release note

Fix the problem that changefeed may get stuck after scaling out new tikv nodes.

[ti-chi-bot]

This cherry pick PR is for a release branch and has not yet been approved by triage owners.
Adding the do-not-merge/cherry-pick-not-approved label.

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[ti-chi-bot]

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[codecov]

Codecov Report

Attention: Patch coverage is 67.56757% with 12 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.1@cd5e9e4). Learn more about missing BASE report.

Additional details and impacted files

Components	Coverage Δ
cdc	61.8314% <0.0000%> (?)
dm	51.0185% <0.0000%> (?)
engine	63.4091% <0.0000%> (?)

Flag	Coverage Δ
unit	57.4165% <67.5675%> (?)

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

@@               Coverage Diff                @@
##             release-8.1     #11931   +/-   ##
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  Coverage               ?   57.4165%           
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  Files                  ?        854           
  Lines                  ?     126110           
  Branches               ?          0           
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  Hits                   ?      72408           
  Misses                 ?      48299           
  Partials               ?       5403           

[lidezhu]

/retest