Update revision of Model Manager

Change-Id: I078c67844e3fe57abaa5c97369bf3a359e56194a
diff --git a/classes/cluster/model-manager/model_manager/dashboard.yml b/classes/cluster/model-manager/model_manager/dashboard.yml
index 6377ecd..db28c96 100644
--- a/classes/cluster/model-manager/model_manager/dashboard.yml
+++ b/classes/cluster/model-manager/model_manager/dashboard.yml
@@ -13,7 +13,7 @@
         protocol: http
         endpoint: internalURL
       source:
-        commit_id: 'd39884f86cb5517c2d058a6772abbb21f87baf73'
+        commit_id: '50cbdce293181e7c789815434f47397ffa526ec9'
   linux:
     network:
       interface: