Bump k8s.io/kube-aggregator from 0.23.3 to 0.26.0 (#3693)

Bumps [k8s.io/kube-aggregator](https://github.com/kubernetes/kube-aggregator) from 0.23.3 to 0.26.0.
- [Release notes](https://github.com/kubernetes/kube-aggregator/releases)
- [Commits](kubernetes/kube-aggregator@v0.23.3...v0.26.0)

---
updated-dependencies:
- dependency-name: k8s.io/kube-aggregator
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -75,7 +75,7 @@ require (
 	k8s.io/api v0.26.0
 	k8s.io/apimachinery v0.26.0
 	k8s.io/client-go v0.26.0
-	k8s.io/kube-aggregator v0.23.3
+	k8s.io/kube-aggregator v0.26.0
 	k8s.io/utils v0.0.0-20221128185143-99ec85e7a448
 	sigs.k8s.io/controller-runtime v0.14.1
 )