[release-3.7] Set a 5-minutes ReadHeaderTimeout for client http.Server

[k8s-infra-cherrypick-robot]

This is an automated cherry-pick of #22128

/assign ahrtr

[kubernetes-prow]

Hi @k8s-infra-cherrypick-robot. 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.

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[ahrtr]

/ok-to-test

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.74%. Comparing base (7a4b47b) to head (ca6c06e).
⚠️ Report is 2 commits behind head on release-3.7.

Additional details and impacted files

Files with missing lines	Coverage Δ
server/embed/serve.go	59.25% <100.00%> (+0.27%)	⬆️

... and 13 files with indirect coverage changes

@@               Coverage Diff               @@
##           release-3.7   #22143      +/-   ##
===============================================
+ Coverage        69.67%   69.74%   +0.06%     
===============================================
  Files              449      449              
  Lines            38186    38188       +2     
===============================================
+ Hits             26606    26634      +28     
+ Misses           10148    10125      -23     
+ Partials          1432     1429       -3     

---

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[ahrtr]

/retest

[kubernetes-prow]

@k8s-infra-cherrypick-robot: 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
pull-etcd-grpcproxy-e2e-amd64	ca6c06e	link	true	/test pull-etcd-grpcproxy-e2e-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.

[ahrtr]

/test pull-etcd-grpcproxy-integration-arm64

[kubernetes-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahrtr, k8s-infra-cherrypick-robot

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• OWNERS [ahrtr]

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