added backupninja support, by default is disable
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index 9beb7a7..c1f7a0f 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -11,3 +11,5 @@
         enabled: true
       sphinx:
         enabled: true
+      backupninja:
+        enabled: false