Set times for cron job in several workers
Set times for cron job in several workers

We are not running all workers with the same schedule. Some of them
need a lower frequency, so setting it in the common.yaml file.

Change-Id: Ie9f8105ae37a7a30570bc56fa4b4e9f282e5b0e8

rdo-infra/puppet-dlrn,javierpena/puppet-delorean,rdo-infra/puppet-dlrn,javierpena/puppet-delorean,javierpena/puppet-delorean,rdo-infra/puppet-dlrn