[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/eed538af32a64bcbb4593c23957321... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5ac1b28d71804c0abb5518f1b146b61c : FAILURE in 5m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8ef651c3d75e411fb23428853bae2168 : SUCCESS in 5m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b2210f702db748c3bc22349357875b64 : SUCCESS in 5m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b992ee228b20447d8e17fb71d2e80cfe : SUCCESS in 6m 04s