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

Build failed. https://zuul.opendev.org/t/openstack/buildset/d93625ebfd9149e6af5f103a2ab03a... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e7312bc20f0443a48e99974c1b459877 : SUCCESS in 6m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3913008a31494b87954e850fe189b4eb : POST_FAILURE in 3m 53s - openstack-tox-py38 https://zuul.opendev.org/t/openstack/build/263f8eb7cd62496783429a1399f738a6 : SUCCESS in 5m 09s