build(deps): bump k8s.io/client-go from 0.21.2 to 0.21.3 (#4761)

Bumps [k8s.io/client-go](https://github.com/kubernetes/client-go) from 0.21.2 to 0.21.3.
- [Release notes](https://github.com/kubernetes/client-go/releases)
- [Changelog](https://github.com/kubernetes/client-go/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kubernetes/client-go/compare/v0.21.2...v0.21.3)

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

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

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

go.mod

@@ -37,6 +37,6 @@ require (
 	gopkg.in/DataDog/dd-trace-go.v1 v1.31.1
 	k8s.io/api v0.21.3
 	k8s.io/apimachinery v0.21.3
-	k8s.io/client-go v0.21.2
+	k8s.io/client-go v0.21.3
 	k8s.io/klog v1.0.0
 )