We also make the openstacksdk-functional-devstack-masakari non-voting
while we wait for them to fix their gate.

Change-Id: Ic46d9e99dd2dd7300299bddcf21d663c4d7223d4
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>
Depends-on: https://review.opendev.org/c/openstack/python-openstackclient/+/949014