REPLACE-WITH-JIRA-KEY: Bump Kubernetes dependencies to v1.36.2

[dfarrell07]

Summary

• Bump all k8s.io/* dependencies from v0.35.2 to v0.36.2
• Bump Go version from 1.25.0 to 1.26.0
• Bump sigs.k8s.io/controller-runtime from v0.23.3 to v0.24.1
• Bump sigs.k8s.io/controller-tools from v0.20.1 to v0.21.0

What changed

Commit	Description	Mechanical?
98d0a05	Rebase k8s-rebase-1.36.2 to k8s 1.36	Yes (go.mod/vendor)
656fa7a	Update codegen for k8s 1.36	Yes (CRD annotation bump)
5054bd3	Update version references for k8s 1.36	Yes (Dockerfile, .ci-operator.yaml)
da2cd20	Disable WatchListClient feature gate in test-go.sh	No (manual fix)

Details

No Go source files were modified outside of vendor/. The k8s 1.36 API surface is fully compatible with CNO's existing code.

The only non-mechanical change disables the WatchListClient feature gate (default-true since k8s 1.35) in hack/test-go.sh. This prevents unit test hangs caused by fake clientsets not implementing the streaming list protocol.

Security improvement: This rebase fixes 37 known CVEs in transitive dependencies, including a critical gRPC auth bypass (GHSA-p77j-4mvh-x3m3, CVSS 9.1) in google.golang.org/grpc.

Verification

Locally verified:

• go build ./... -- PASS
• go vet ./... -- PASS
• golangci-lint run -- PASS
• Unit tests -- PASS (16/17 packages; pkg/controller/proxyconfig fails due to missing /etc/pki/ca-trust/ in container env, pre-existing)
• Independent antagonistic review -- APPROVE

All commits carry Assisted-by: Claude Code trailers.

CI Notes

• Builder images reference golang-1.26-openshift-4.22 -- verify ART has published these.
• .snyk uses vendor/** glob exclusion (safe for vendor changes).

[openshift-merge-bot]

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[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: dfarrell07
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