operator: When replacing-down-peer, it should not stop at the step of leave-joint-state

[HunDunDM]

Signed-off-by: HunDunDM hundundm@gmail.com

What problem does this PR solve?

Issue Number: Close #5788

What is changed and how does it work?

Rolled back some code from #5568 and added unittest.

Check List

Tests

• Unit test

Code changes

Side effects

Related changes

• Need to cherry-pick to the release branch

Release note

Fixed an issue that `replace-down-peer` could be too slow.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• nolouch
• rleungx

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[HunDunDM]

cc @ethercflow

[codecov]

Codecov Report

Base: 75.72% // Head: 75.52% // Decreases project coverage by -0.20% ⚠️

Coverage data is based on head (8bb7c99) compared to base (544c86a).
Patch coverage: 100.00% of modified lines in pull request are covered.

❗ Current head 8bb7c99 differs from pull request most recent head 3066c18. Consider uploading reports for the commit 3066c18 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5789      +/-   ##
==========================================
- Coverage   75.72%   75.52%   -0.21%     
==========================================
  Files         330      330              
  Lines       32996    32996              
==========================================
- Hits        24987    24921      -66     
- Misses       5870     5916      +46     
- Partials     2139     2159      +20     

Flag	Coverage Δ
unittests	75.52% <100.00%> (-0.21%)	⬇️

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

Impacted Files	Coverage Δ
server/schedule/operator/step.go	73.80% <100.00%> (+0.71%)	⬆️
pkg/errs/errs.go	75.00% <0.00%> (-25.00%)	⬇️
pkg/utils/tempurl/tempurl.go	45.00% <0.00%> (-15.00%)	⬇️
pkg/dashboard/adapter/manager.go	79.31% <0.00%> (-9.20%)	⬇️
...erver/config/service_middleware_persist_options.go	91.66% <0.00%> (-8.34%)	⬇️
server/tso/local_allocator.go	64.86% <0.00%> (-6.76%)	⬇️
server/region_syncer/client.go	79.85% <0.00%> (-6.72%)	⬇️
pkg/storage/kv/etcd_kv.go	79.71% <0.00%> (-5.80%)	⬇️
server/storage/storage.go	67.30% <0.00%> (-3.85%)	⬇️
server/schedulers/random_merge.go	62.50% <0.00%> (-3.13%)	⬇️
... and 22 more

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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: 8bb7c99

[ti-chi-bot]

@HunDunDM: Your PR was out of date, I have automatically updated it for you.

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #5795.