[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/396abc1f82bd4377b3c8eaeede45cc... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0650c45e84f14ea8bbddb4c96280a342 : FAILURE in 6m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3246d6373d02458d8b8d518eb8985c27 : SUCCESS in 6m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/19c9c946416a4182af8f1b1848863e5d : SUCCESS in 5m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fe56fdeec0d64edea4ec6357ff14a469 : SUCCESS in 7m 32s