[Openstack-stable-maint] Stable check of openstack/networking-bgpvpn for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/cdfb7798af524781ae4fe15d136fa8... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5fa9df14dedb4f04a05b10296d9829d3 : FAILURE in 9m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2bb9b2664de14cdcbf0349ad98da7214 : SUCCESS in 9m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4fbd6cf62af8469da99fe5b04653a41c : SUCCESS in 7m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1853cbd27dc5428caaafabe12a205332 : SUCCESS in 8m 05s