[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/a4892a32ef84441db43c3f657d4968... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3a18f66429eb420caac26ba25bdd8908 : FAILURE in 5m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1622ccce4e27481cadf754f01c136e7d : SUCCESS in 8m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/80e85e026b954191b68ae1c0996c06ec : SUCCESS in 6m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3d0bb49707104837811ed7af13a0012c : SUCCESS in 5m 52s