dr-autosync: add recover timeout (#6295)

[ti-chi-bot]

This is an automated cherry-pick of #6295

What problem does this PR solve?

Issue Number: close #4939.

What is changed and how does it work?

add a configuration item to delay dr state switch from async to sync-recover

Check List

Tests

• Unit test

Release note

None.

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 74.76%. Comparing base (a385ada) to head (adf0f22).
Report is 1 commits behind head on release-7.1.

Files with missing lines	Patch %	Lines
server/replication/replication_mode.go	75.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##           release-7.1    #8775      +/-   ##
===============================================
- Coverage        74.82%   74.76%   -0.07%     
===============================================
  Files              412      412              
  Lines            41974    41980       +6     
===============================================
- Hits             31409    31387      -22     
- Misses            7810     7837      +27     
- Partials          2755     2756       +1     

Flag	Coverage Δ
unittests	74.76% <75.00%> (-0.07%)	⬇️

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-11-07 05:49:23.043353905 +0000 UTC m=+1106475.882509443: ☑️ agreed by rleungx.
• 2024-11-08 06:01:57.291537854 +0000 UTC m=+1193630.130693404: ☑️ agreed by lhy1024.

[ti-chi-bot]

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[rleungx]

/hold

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lhy1024, niubell, rleungx

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Needs approval from an approver in each of these files:

• OWNERS [lhy1024,rleungx]
• server/config/OWNERS [niubell]

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[rleungx]

/hold cancel