Spread out the scheduling of Daily jobs

Spread the scheduling of Daily jobs throughout the
day to reduce resource contention.

Change-Id: I2b2606b4022c1d9f882bfe95b439b021b17f362e
Issue-ID: INT-586
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
diff --git a/jjb/appc/appc-master.yaml b/jjb/appc/appc-master.yaml
index 2384fc9..ed973ec 100644
--- a/jjb/appc/appc-master.yaml
+++ b/jjb/appc/appc-master.yaml
@@ -27,7 +27,7 @@
     name: appc-sonar
     jobs:
       - gerrit-maven-sonar
-    cron: 'H 11 * * *'
+    cron: '@daily'
     build-node: ubuntu1604-builder-8c-8g
     project: 'appc'
     project-name: 'appc'