ingress-nginx: Upgrade to 0.19.0

Upstream Changes:

-   ingress-nginx 0.19.0 (https://github.com/kubernetes/ingress-nginx/releases/tag/nginx-0.19.0)

Our Changes:

-   Sync templates with upstream changes

roles/kubernetes-apps/ingress_controller/ingress_nginx/templates/rolebinding-ingress-nginx.yml.j2

@@ -4,11 +4,14 @@ kind: RoleBinding
 metadata:
   name: ingress-nginx
   namespace: {{ ingress_nginx_namespace }}
-subjects:
-  - kind: ServiceAccount
-    name: ingress-nginx
-    namespace: {{ ingress_nginx_namespace }}
+  labels:
+    app.kubernetes.io/name: ingress-nginx
+    app.kubernetes.io/part-of: ingress-nginx
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: Role
   name: ingress-nginx
+subjects:
+  - kind: ServiceAccount
+    name: ingress-nginx
+    namespace: {{ ingress_nginx_namespace }}