Re-add magnumclient to shade's magnum job
The magnum plugin seems to want to install magnumclient from source, so
not having it here seems to be making this job very unhappy.
export DEVSTACK_LOCAL_CONFIG+=$'\n'"disable_service ceilometer-collector"
export PROJECTS="openstack/magnum $PROJECTS"
+ export PROJECTS="openstack/python-magnumclient $PROJECTS"
export PROJECTS="openstack-infra/shade $PROJECTS"
export BRANCH_OVERRIDE={branch-override}
