etcdserver: replace ParseInt with Atoi in getClusterSize

[1911860538]

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: 1911860538
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[k8s-ci-robot]

Hi @1911860538. Thanks for your PR.

I'm waiting for a etcd-io member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[henrybear327]

/ok-to-test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.83%. Comparing base (316991e) to head (b42a131).
Report is 583 commits behind head on main.

Additional details and impacted files

Files with missing lines	Coverage Δ
server/etcdserver/api/v3discovery/discovery.go	67.80% <100.00%> (ø)

... and 41 files with indirect coverage changes

@@            Coverage Diff             @@
##             main   #19714      +/-   ##
==========================================
- Coverage   68.84%   68.83%   -0.02%     
==========================================
  Files         421      421              
  Lines       35901    35857      -44     
==========================================
- Hits        24717    24681      -36     
+ Misses       9757     9744      -13     
- Partials     1427     1432       +5     

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[k8s-ci-robot]

@1911860538: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci-etcd-robustness-release36-amd64	b42a131	link	true	/test ci-etcd-robustness-release36-amd64

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.