[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/c1383ca419674ec7936716b5d6e980... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3b7714e4a9814b7baef10dbb6c006d90 : FAILURE in 6m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f1c4558f87d34bb89479bbd844eb388b : SUCCESS in 6m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a11ab0246d2344368ac5e7ce7953e6e4 : SUCCESS in 6m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/398adcf66a8a468b92948ff3c0005e81 : SUCCESS in 7m 53s