dev.gitlab.org - Automated tasks

1. Nightly builds: Every day at 1:30 UTC, a nightly build gets triggered on gitlab.com. The cron trigger times are currently defined at the scheduled pipeline page in the omnibus-gitlab repository.

2. Deployments: Every day at 3:20 UTC, the nightly CE packages gets automatically deployed on dev.gitlab.org. Any errors in the install process will be logged in Sentry. Slack notifications will appear in #dev-gitlab. The cron task is currently defined in role file.