Make 'scan_for_artifacts.sh' publish repos separately
The 'scan_for_artifacts.sh' cron job runs on the resources server and syncs packages into the nightly snapshot repos. It tries to serially sync all repos for all oVirt versions.
The issue is that if one of the repos fails to sync, the rest do not get synced either.
We need to make the cron job sync each repo separately so failure mfor one repo will not affect the others.