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]

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[ti-chi-bot]

@ti-chi-bot: The following test 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-storage-test	44fd0bc	link	true	/test cdc-integration-storage-test

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