Changed cron scheduling of jenkins failed stack remove pipeline

Change-Id: Ifc50fa89343ceae52f0d084d9d0d1756150f3c67
diff --git a/jenkins/client/job/deploy/lab/cleanup.yml b/jenkins/client/job/deploy/lab/cleanup.yml
index 626dd4e..4d2a179 100644
--- a/jenkins/client/job/deploy/lab/cleanup.yml
+++ b/jenkins/client/job/deploy/lab/cleanup.yml
@@ -74,7 +74,7 @@
             script: delete-broken-stacks-pipeline.groovy
           trigger:
             timer:
-              spec: "0 H * * *"
+              spec: "0 0 * * *"
           param:
             # openstack api
             OPENSTACK_API_URL: