[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/218b70518c204a9aa33b376438fe5d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c004f3578f4a4c219958657c770131e3 : FAILURE in 6m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0fd78b994bc944848333c0dce95559ce : SUCCESS in 7m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f678fa06f4a44344a30ba1c8cc7c2aae : SUCCESS in 5m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7ea8e8465b154dd58c89f8377ef373c7 : SUCCESS in 6m 48s