global config: fix etcd client not found (#6866)

[ti-chi-bot]

This is an automated cherry-pick of #6866

What problem does this PR solve?

Issue Number: Close #6860

What is changed and how does it work?

Check List

Tests

• Integration test

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• bufferflies
• lhy1024

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[lhy1024]

need to fix conlict

[HuSharp]

/hold
I found tests are in another file, needs to change as well

[HuSharp]

/test build

[ti-chi-bot]

@HuSharp: No presubmit jobs available for tikv/pd@release-5.4

In response to this:

/test build

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[HuSharp]

/retest

[HuSharp]

/test

[ti-chi-bot]

@HuSharp: No presubmit jobs available for tikv/pd@release-5.4

In response to this:

/test

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[HuSharp]

/retest

[bufferflies]

/merge

[ti-chi-bot]

@bufferflies: 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: 7d52dcd

[bufferflies]

/merge

[ti-chi-bot]

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

/run-all-tests

You only need to trigger /merge once, and 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.

If you have any questions about the PR merge process, please refer to pr process.

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[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.30% ⚠️

Comparison is base (1198030) 74.83% compared to head (7d52dcd) 74.54%.

Additional details and impacted files

@@               Coverage Diff               @@
##           release-5.4    #6943      +/-   ##
===============================================
- Coverage        74.83%   74.54%   -0.30%     
===============================================
  Files              265      265              
  Lines            28012    28019       +7     
===============================================
- Hits             20963    20886      -77     
- Misses            5196     5267      +71     
- Partials          1853     1866      +13     

Flag	Coverage Δ
unittests	74.54% <100.00%> (-0.30%)	⬇️

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

Files Changed	Coverage Δ
server/grpc_service.go	51.05% <100.00%> (-0.69%)	⬇️
server/server.go	71.72% <100.00%> (-0.41%)	⬇️

... and 19 files with indirect coverage changes

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