grafana: upgrade to 6.1.15

apps/argocd/patches/argocd-cm.yaml

@@ -14,6 +14,9 @@ data:
         clientID: $dex.github.clientId
         clientSecret: $dex.github.clientSecret
   repositories: |
+    - name: grafana
+      type: helm
+      url: https://grafana.github.io/helm-charts
     - name: ingress-nginx
       type: helm
       url: https://kubernetes.github.io/ingress-nginx

apps/system/grafana/Chart.yaml

@@ -1,2 +1,3 @@
 name: grafana
 version: 0.1
+apiVersion: v2

apps/system/grafana/requirements.yaml

@@ -1,4 +1,4 @@
 dependencies:
   - name: grafana
-    version: '5.2.1'
-    repository: '@stable'
+    version: '6.1.15'
+    repository: https://grafana.github.io/helm-charts