Merge branch '535-upgrade-rocket-chat' into 'master'

Resolve "Upgrade rocket.chat"

Closes #535

See merge request openappstack/openappstack!240

flux/rocketchat.yaml

@@ -9,14 +9,9 @@ metadata:
 spec:
   releaseName: rocketchat
   chart:
-    # repository: https://kubernetes-charts.storage.googleapis.com/
-    # name: rocketchat
-    # Wait for this version to be available:
-    # https://github.com/helm/charts/pull/19637
-    # version: 2.0.1
-    git: https://github.com/greenhost/charts
-    ref: 8b80ebdce2e3e384fd5e0bfc79d65c3b089e5b4f
-    path: stable/rocketchat
+    repository: https://kubernetes-charts.storage.googleapis.com/
+    name: rocketchat
+    version: 2.0.2
   valuesFrom:
     - secretKeyRef:
         name: rocketchat-settings