Katello-nightly-rpm-pipeline 547 failed

Infra & CI
1

Katello nightly pipeline failed:

https://ci.theforeman.org/job/katello-nightly-rpm-pipeline/547/

2

upgrade test fails on:

Package candlepin-selinux-2.5.7-1.el7.noarch.rpm is not signed
Public key for katello-3.9.0-1.el7.noarch.rpm is not installed
3

this has been resolved