[Release-job-failures] Release of openstack/horizon for ref refs/tags/18.6.1 failed

Build failed. - openstack-upload-github-mirror https://zuul.opendev.org/t/openstack/build/2e225ad832914fb1b4e05846d441012e : SUCCESS in 1m 10s - release-openstack-python https://zuul.opendev.org/t/openstack/build/93510e0303e74af9bb411ee0c764306f : SUCCESS in 3m 45s - announce-release https://zuul.opendev.org/t/openstack/build/7e492698b59d4c049a641e8a03860a53 : SUCCESS in 3m 58s - propose-update-constraints https://zuul.opendev.org/t/openstack/build/9286fa8cf34f467c9de0b8a1013634b9 : RETRY_LIMIT in 3m 51s