[gitlab] Fix gitlab configuration file path

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

roles/gitlab/tasks/main.yml

@@ -20,9 +20,10 @@
 - name: Add Gitlab configuration
   template:
     src: gitlab.rb.j2
-    dest: /etc/letsencrypt/rfc2136.ini
+    dest: /etc/gitlab/gitlab.rb
     mode: 0600
     owner: root
+    group: root
 
 - name: Reconfigure Gitlab
   command: gitlab-ctl reconfigure