koodlet: fix resource in cri proxy response maybe nil for kubelet 1.18

[zwzhang0107]

Ⅰ. Describe what this PR does

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

Merging #587 (3cba466) into main (156848b) will decrease coverage by 0.49%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #587      +/-   ##
==========================================
- Coverage   68.74%   68.24%   -0.50%     
==========================================
  Files         166      170       +4     
  Lines       19444    19617     +173     
==========================================
+ Hits        13366    13387      +21     
- Misses       5130     5277     +147     
- Partials      948      953       +5     

Flag	Coverage Δ
unittests	68.24% <100.00%> (-0.50%)	⬇️

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

Impacted Files	Coverage Δ
...oordlet/runtimehooks/protocol/container_context.go	11.59% <100.00%> (ø)
pkg/koordlet/runtimehooks/protocol/pod_context.go	14.54% <100.00%> (ø)
pkg/koordlet/runtimehooks/protocol/protocol.go	7.14% <100.00%> (ø)
pkg/util/httputil/reverseproxy.go	84.30% <0.00%> (-0.80%)	⬇️
.../koordlet/runtimehooks/protocol/kubeqos_context.go	0.00% <0.00%> (ø)
...eduler/plugins/coscheduling/controller/podgroup.go	70.93% <0.00%> (+1.97%)	⬆️
pkg/koordlet/runtimehooks/reconciler/reconciler.go	81.05% <0.00%> (+2.10%)	⬆️

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[jasonliu747]

/lgtm

[hormes]

/lgtm
/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hormes

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