fix(deps): update k8s.io/kube-openapi digest to b540ad9

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
k8s.io/kube-openapi	require	digest	5b3e3fd → b540ad9

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[renovate]

ℹ️ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• 11 additional dependencies were updated

Details:

Package	Change
golang.org/x/text	v0.32.0 -> v0.34.0
github.com/emicklei/go-restful/v3	v3.12.2 -> v3.13.0
github.com/go-openapi/swag	v0.23.0 -> v0.25.4
golang.org/x/crypto	v0.46.0 -> v0.48.0
golang.org/x/mod	v0.30.0 -> v0.33.0
golang.org/x/net	v0.48.0 -> v0.50.0
golang.org/x/sys	v0.40.0 -> v0.41.0
golang.org/x/term	v0.38.0 -> v0.40.0
golang.org/x/tools	v0.39.0 -> v0.42.0
k8s.io/utils	v0.0.0-20251002143259-bc988d571ff4 -> v0.0.0-20260210185600-b8788abfbbc2
sigs.k8s.io/structured-merge-diff/v6	v6.3.2-0.20260122202528-d9cc6641c482 -> v6.3.2