ci: Workaround getfedora.org/atomic_qcow2_latest being 404
ci: Workaround getfedora.org/atomic_qcow2_latest being 404

Closes: #1652
Approved by: cgwalters

GNOME/ostree,GNOME/ostree,GNOME/ostree,GNOME/ostree,GNOME/ostree