registry compose goes to root

Change-Id: I92c4cdd3756357c28b45512d7731b3d85c755f13
diff --git a/roles/registry/tasks/main.yml b/roles/registry/tasks/main.yml
index 1453eef..e371463 100644
--- a/roles/registry/tasks/main.yml
+++ b/roles/registry/tasks/main.yml
@@ -38,8 +38,8 @@
   template:
     src: templates/{{ item }}.j2
     dest: /etc/maas/{{ item }}
-    owner: maas
-    group: maas
+    owner: root
+    group: root
     mode: 0644
   with_items:
     - registry-compose.yml