[Openstack-stable-maint] Stable check of openstack/ironic for ref refs/heads/stable/ussuri failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/4aaa958b454d406e9429910bb71b85... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2603058ca0cd47859bba0b272913943a : TIMED_OUT in 31m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/25aab4f0f2774f4c803473949f068667 : SUCCESS in 6m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e4c4f62422614777ab9ffaca1d18842d : SUCCESS in 16m 13s