replication mode: tune persist file timeout

[disksing]

Issue Number: Fix #6672

cherry-pick #6669

What is changed and how does it work?

change persist file timeout from 10s to 3s to speed up state change

Check List

Tests

• Unit test

Code changes

• Has the configuration change
• Has HTTP API interfaces changed (Don't forget to add the declarative for the new API)
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• PR to update pingcap/docs/pingcap/docs-cn:
• PR to update pingcap/tiup:
• Need to cherry-pick to the release branch

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lhy1024
• nolouch

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[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.45 🎉

Comparison is base (086871d) 75.59% compared to head (379a9e0) 76.05%.

❗ Current head 379a9e0 differs from pull request most recent head 5fa2e72. Consider uploading reports for the commit 5fa2e72 to get more accurate results

Additional details and impacted files

@@               Coverage Diff               @@
##           release-6.5    #6670      +/-   ##
===============================================
+ Coverage        75.59%   76.05%   +0.45%     
===============================================
  Files              329      330       +1     
  Lines            33130    33525     +395     
===============================================
+ Hits             25046    25498     +452     
+ Misses            5931     5874      -57     
  Partials          2153     2153              

Flag	Coverage Δ
unittests	76.05% <ø> (+0.45%)	⬆️

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

Impacted Files	Coverage Δ
server/replication/replication_mode.go	78.94% <ø> (ø)

... and 35 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
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[nolouch]

/merge

[ti-chi-bot]

@nolouch: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 379a9e0

[nolouch]

@disksing out-of-date, may need push some new commit.