chore(docker-registry): clean up labels and namespaces

apps/docker-registry/base/pvc.yaml

@@ -4,16 +4,11 @@ kind: PersistentVolumeClaim
 apiVersion: v1
 metadata:
   name: docker-registry
-  namespace: gitops
   labels:
-    app: docker-registry
-    chart: "docker-registry-2.2.3"
-    release: "docker-registry"
-    heritage: "Helm"
+    app.kubernetes.io/name: docker-registry
 spec:
   accessModes:
     - "ReadWriteOnce"
   resources:
     requests:
       storage: "10Gi"
-