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

Build failed. https://zuul.opendev.org/t/openstack/buildset/79da43617f6c4434838eaf05093222... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cd1ca875d214408d8910d54f066dc694 : SUCCESS in 4m 57s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d91aff59c3f2486281c5f439895b5334 : SUCCESS in 5m 14s - openstack-tox-py38 https://zuul.opendev.org/t/openstack/build/205ff8789c39469db2cd94c90faa91e6 : POST_FAILURE in 4m 05s