[Openstack-stable-maint] Stable check of openstack/oslo.service for ref refs/heads/stable/xena failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/76b37c6748d543d4b1fcf89ece2821... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4bf4992b818d45fba617c8366ade056f : SUCCESS in 4m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1fe6480d7acb490db172335b51cd7ece : SUCCESS in 4m 23s - openstack-tox-py38 https://zuul.opendev.org/t/openstack/build/e7f43ce9e42f4839838a9950c10b5533 : POST_FAILURE in 5m 00s