add port in sample for grafana smtp configuration (#160)

Author: suberti-ads

inventory/sample/host_vars/setup/apps.yml

@@ -53,7 +53,7 @@ grafana:
     enabled: "true"
     from_address: [email protected]
     from_name: Test
-    host: HOST
+    host: HOST:port
   smtp_credentials:
     password: PASSWORD
     user: [email protected]