backup: watch store state and retry backup immediately

[3pointer]

What problem does this PR solve?

Issue Number: close #52534
close #53519
Problem Summary:

What changed and how does it work?

1. reuse storewatch to observe store change event to retry backup.
2. refine main backup code for easy to 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

[ti-chi-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[ti-chi-bot]

@Leavrth: Your lgtm message is repeated, so it is ignored.

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[3pointer]

/test unit-test

[tiprow]

@3pointer: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

• /test fast_test_tiprow
• /test tidb_parser_test

Use /test all to run all jobs.

In response to this:

/test unit-test

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-04 02:22:17.20906223 +0000 UTC m=+3347890.966197820: ☑️ agreed by Leavrth.
• 2024-06-06 02:24:34.23719237 +0000 UTC m=+3520827.994327943: ☑️ agreed by YuJuncen.