Add manila user for manila-manage command

Change-Id: I31784a6fef3da6612290d676856ea6b82f2c2b4c
Related-Prod: PROD-26062
diff --git a/manila/db/offline_sync.sls b/manila/db/offline_sync.sls
index 1a54d31..cbf357d 100644
--- a/manila/db/offline_sync.sls
+++ b/manila/db/offline_sync.sls
@@ -4,6 +4,7 @@
   cmd.run:
   - names:
     - manila-manage --config-file /etc/manila/manila.conf db sync
+  - runas: 'manila'
   {%- if grains.get('noservices') or api.get('role', 'primary') == 'secondary' %}
   - onlyif: /bin/false
   {%- endif %}