update nextcloud chart version

nextcloud/requirements.lock

 dependencies:
 - name: nextcloud
   repository: https://kubernetes-charts.storage.googleapis.com
-  version: 1.0.2
+  version: 1.1.1
 - name: collabora-code
   repository: https://kubernetes-charts.storage.googleapis.com
   version: 1.0.2
-digest: sha256:53d9ba3d4b86bea6e2b7aa480abd03737e623e14cf14275feb27a0ff320a15f6
-generated: 2019-04-30T13:00:36.870647752+02:00
+digest: sha256:873a73729328b195e802e24fb0523eadf25fcdef38f39f516f9f8e21c7d1157b
+generated: 2019-05-28T13:56:53.685080137+02:00

nextcloud/requirements.yaml

 dependencies:
   - name: nextcloud
-    version: 1.1.0
+    version: 1.1.1
     repository: "@stable"
     tags:
       - nextcloud