chore: split util/pod.go by function

[eahydra]

Signed-off-by: Joseph joseph.t.lee@outlook.com

Ⅰ. Describe what this PR does

Splitting util/pod.go by function is easy to maintain.

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

Base: 68.15% // Head: 68.19% // Increases project coverage by +0.04% 🎉

Coverage data is based on head (3fc210f) compared to base (f653e7e).
Patch coverage: 59.77% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #792      +/-   ##
==========================================
+ Coverage   68.15%   68.19%   +0.04%     
==========================================
  Files         210      211       +1     
  Lines       24102    24102              
==========================================
+ Hits        16427    16437      +10     
+ Misses       6535     6526       -9     
+ Partials     1140     1139       -1     

Flag	Coverage Δ
unittests	68.19% <59.77%> (+0.04%)	⬆️

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

Impacted Files	Coverage Δ
pkg/util/pod.go	44.31% <ø> (-8.29%)	⬇️
pkg/util/pod_resources_utils.go	58.22% <58.22%> (ø)
pkg/util/pod_qos_utils.go	60.00% <75.00%> (+26.66%)	⬆️
pkg/util/httputil/reverseproxy.go	85.10% <0.00%> (+0.79%)	⬆️
pkg/koordlet/runtimehooks/reconciler/reconciler.go	78.94% <0.00%> (+7.36%)	⬆️

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[jasonliu747]

/lgtm

[jasonliu747]

英语满分💯

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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This pull-request has been approved by: jasonliu747, saintube

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[FillZpp]

/milestone v1.1