Bump k8s.io/client-go from 0.21.2 to 0.23.4

Bumps [k8s.io/client-go](https://github.com/kubernetes/client-go) from 0.21.2 to 0.23.4.
- [Release notes](https://github.com/kubernetes/client-go/releases)
- [Changelog](https://github.com/kubernetes/client-go/blob/master/CHANGELOG.md)
- [Commits](kubernetes/client-go@v0.21.2...v0.23.4)

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

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

go.mod

@@ -6,8 +6,8 @@ require (
 	github.com/onsi/ginkgo v1.16.4
 	github.com/onsi/gomega v1.13.0
 	github.com/stretchr/testify v1.7.0
-	k8s.io/api v0.21.2
-	k8s.io/apimachinery v0.21.2
-	k8s.io/client-go v0.21.2
+	k8s.io/api v0.23.4
+	k8s.io/apimachinery v0.23.4
+	k8s.io/client-go v0.23.4
 	sigs.k8s.io/controller-runtime v0.9.2
 )