[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/78274f1967c2405e8edf8d500ebe93... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c0bbacc206fc4952bd026c2567c08528 : FAILURE in 6m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/605caf8596884c5c90f7c7d0f71ca81f : SUCCESS in 6m 03s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b5da4230d1ab457a9db101f5c9e7aa40 : SUCCESS in 6m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7bbaa4178a2d4686bf29809fe238a8db : SUCCESS in 8m 12s