Fix typo in metadata/service/client/single.yml

Change-Id: I313ec796bdaf2d6acfc5816016c04f2ea6a34806
diff --git a/metadata/service/client/single.yml b/metadata/service/client/single.yml
index 62407e0..633b490 100644
--- a/metadata/service/client/single.yml
+++ b/metadata/service/client/single.yml
@@ -1,5 +1,5 @@
 applications:
-- grafana.client
+- grafana
 parameters:
   grafana:
     client: