*: fix the data race problem

[rleungx]

What problem does this PR solve?

Closes #3601

What is changed and how it works?

This PR uses Clone to get the config.

Check List

Tests

• Unit test

Release note

[JmPotato]

Rest LGTM

[HunDunDM]

rest LGTM

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• HunDunDM
• JmPotato

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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Details

Reviewer can indicate their review by writing /lgtm in a comment.
Reviewer can cancel approval by writing /lgtm cancel in a comment.

[HunDunDM]

Need cherry-pick?

[HunDunDM]

/merge

[ti-chi-bot]

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

/run-all-tests

Details

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[ti-chi-bot]

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

Details

Commit hash: 01f22e1

[HunDunDM]

/run-integration-common-test

[codecov]

Codecov Report

Merging #3603 (9e9e6a8) into master (9d9c8ee) will decrease coverage by 0.11%.
The diff coverage is 100.00%.

❗ Current head 9e9e6a8 differs from pull request most recent head da084c4. Consider uploading reports for the commit da084c4 to get more accurate results

@@            Coverage Diff             @@
##           master    #3603      +/-   ##
==========================================
- Coverage   74.70%   74.58%   -0.12%     
==========================================
  Files         245      245              
  Lines       24139    24134       -5     
==========================================
- Hits        18033    18001      -32     
- Misses       4499     4516      +17     
- Partials     1607     1617      +10     

Flag	Coverage Δ
unittests	74.58% <100.00%> (-0.12%)	⬇️

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

Impacted Files	Coverage Δ
server/statistics/store_collection.go	95.27% <ø> (ø)
server/config/persist_options.go	91.37% <100.00%> (+0.03%)	⬆️
server/server.go	72.65% <100.00%> (-0.56%)	⬇️
server/election/leadership.go	83.52% <0.00%> (-5.89%)	⬇️
server/schedulers/random_merge.go	60.00% <0.00%> (-3.34%)	⬇️
server/tso/allocator_manager.go	74.08% <0.00%> (-2.66%)	⬇️
server/encryptionkm/key_manager.go	71.78% <0.00%> (-1.66%)	⬇️
server/member/member.go	67.20% <0.00%> (-1.62%)	⬇️
server/schedulers/utils.go	93.10% <0.00%> (-1.38%)	⬇️
server/core/storage.go	68.44% <0.00%> (-0.77%)	⬇️
... and 5 more

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[JmPotato]

/run-all-tests

[sonarqubecloud]

SonarCloud Quality Gate failed.

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
4.8% Duplication