[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/42bd7c1f96a54d31b49567ee675b85... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7ddff223c40645c89ea38e6ec19ece4f : FAILURE in 6m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/be5b2ed8c1d9454c9563d83ce2eaccef : SUCCESS in 8m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c980db6f3c994e0e80ad9f949095e1e8 : SUCCESS in 8m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/051b16f6a9964807a3647847484f52b0 : SUCCESS in 7m 51s