Add support for PodSecurityStandards (#9713)

roles/kubernetes-apps/metallb/templates/metallb.yml.j2

@@ -4,6 +4,9 @@ metadata:
   name: metallb-system
   labels:
     app: metallb
+    pod-security.kubernetes.io/audit: privileged
+    pod-security.kubernetes.io/enforce: privileged
+    pod-security.kubernetes.io/warn: privileged
 ---
 apiVersion: v1
 kind: ServiceAccount