[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/c47c4c46126a4c65bd0be48779c613... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ecde43e7856543a0aceeb8a16c1d4617 : FAILURE in 6m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ce24ddacf633458b9b1bc7278761651e : SUCCESS in 6m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4c3a028e03514e49a1afbd532f3c3f47 : SUCCESS in 6m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/952884f93bf64a938a0d97b41114af2e : SUCCESS in 7m 12s