[JIRA] (OVIRT-1428) Add email notification to timed build artifacts jobs

Add email notification to timed build artifacts jobs ---------------------------------------------------- Key: OVIRT-1428 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-1428 Project: oVirt - virtualization made easy Issue Type: Task Reporter: Daniel Belenky Assignee: Daniel Belenky Add email notification to all the build-artifacts jobs which are being triggered timely, and add infra(a)ovirt.org as default receiver in case that the maintainer has activated the plugin without specifying email(s).