Merge branch 'renovate/k8s.gcr.io-kube-proxy-1.21.x' into 'development'

Update k8s.gcr.io/kube-proxy Docker tag to v1.21.2

See merge request !30

hardening_manifest.yaml

@@ -27,7 +27,7 @@ labels:
   org.opencontainers.image.url: "docker://k8s.gcr.io/kube-proxy"
   ## Name of the distributing entity, organization or individual
   org.opencontainers.image.vendor: "opensource"
-  org.opencontainers.image.version: "v1.21.1"
+  org.opencontainers.image.version: "v1.21.2"
   ## Keywords to help with search (ex. "cicd,gitops,golang")
   mil.dso.ironbank.image.keywords: "kube-proxy"
   ## This value can be "opensource" or "commercial"