https://github.com/openshift/library-go/blob/ccc4bb27d0320da04e5d2af6be09f030440bb152/test/library/metrics/query.go#L63 is using old name but should default-ingress-cert instead.
*** Bug 1826601 has been marked as a duplicate of this bug. ***
Refer https://bugzilla.redhat.com/show_bug.cgi?id=1826601#c4, and check the configmap with payload 4.5.0-0.nightly-2020-04-23-202137, will verify this.
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, 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-2020:2409