REPLACE-WITH-JIRA-KEY: Bump k8s dependencies to v0.36.2 (Go 1.26)

[dfarrell07]

Summary

Rebase cluster-network-operator k8s dependencies from v0.35.2 to v0.36.2,
updating Go from 1.25 to 1.26 and the OCP stream from 4.22 to 5.0.

What changed

• k8s.io/ dependencies*: v0.35.2 → v0.36.2 (k8s 1.36)
• Go version: 1.25.0 → 1.26.0
• controller-runtime: v0.22.x → v0.24.1
• controller-tools: v0.19.x → v0.21.0 (CRD annotation version bump)
• OCP CI stream: openshift-4.22 → openshift-5.0 (golang-1.26 images)
• WatchListClient feature gate: disabled in hack/test-go.sh for fake clientset compatibility

Commits

Commit	Description	Type
f81e270da	Rebase k8s-rebase-1.36.2 to k8s 1.36	Mechanical (go.mod, go.sum, vendor)
d3f9242dd	Update codegen for k8s 1.36	Mechanical (controller-gen v0.21.0)
4162cbcc2	Update version references for k8s 1.36	Mechanical (Go version in CI/Dockerfile)
e029f1441	Disable WatchListClient feature gate	Fix (fake clientset informer hang prevention)
511c7f653	Update OCP stream from 4.22 to 5.0	Fix (golang-1.26 builder images)

Verification

• go build ./... — PASS
• go vet ./... — PASS
• golangci-lint run — PASS (0 issues)
• go test ./pkg/... ./cmd/... — PASS (1 pre-existing container-only failure in proxyconfig: missing /etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem)
• Test compilation (go test -run='^$' -count=0 ./...) — PASS
• Independent antagonistic review — APPROVE

Security notes

This rebase fixes 9 CVEs in transitive dependencies:

• 8 in golang.org/x/crypto (v0.48.0 → v0.52.0)
• 1 in golang.org/x/net (v0.51.0 → v0.55.1-pre)

All commits carry Assisted-by: Claude Code trailers.

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[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: dfarrell07
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