Add cron trigger to Jenkinsfile

- Add H for hash to even the load
- run only from midnight to 5 in the morning

Author: Zejnilovic

Jenkinsfile

@@ -24,7 +24,9 @@ pipeline {
     agent {
         label "${hyperdriveSlaveLabel}"
     }
-
+    triggers {
+        cron(env.BRANCH_NAME == 'develop' ? 'H H(0-5) * * 0' : '')
+    }
     tools {
         jdk "${toolVersionJava}"
         maven "${toolVersionMaven}"