ART builds are failing
ART picked up the change: https://pkgs.devel.redhat.com/cgit/containers/ose-ovn-kubernetes/tree/Dockerfile?id=f471f14480280ac25abbea84eaece855a7f688f2 and there have been no more "Failed OCP build of openshift/ose-ovn-kubernetes:v4.6.0" mails since then.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (OpenShift Container Platform 4.6 GA Images), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:4196