build(deps): bump k8s.io/code-generator from 0.29.7 to 0.29.13

Bumps [k8s.io/code-generator](https://github.com/kubernetes/code-generator) from 0.29.7 to 0.29.13.
- [Commits](kubernetes/code-generator@v0.29.7...v0.29.13)

---
updated-dependencies:
- dependency-name: k8s.io/code-generator
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -32,7 +32,7 @@ require (
 	k8s.io/api v0.29.13
 	k8s.io/apimachinery v0.29.13
 	k8s.io/client-go v0.29.6
-	k8s.io/code-generator v0.29.7
+	k8s.io/code-generator v0.29.13
 	k8s.io/klog v1.0.0
 	k8s.io/kube-openapi v0.0.0-20231010175941-2dd684a91f00
 	knative.dev/pkg v0.0.0-20240416145024-0f34a8815650