Update .zuul.yaml
Update .zuul.yaml

Rename jobs to follow naming conventions for a shared global namespace,
see
https://docs.openstack.org/infra/manual/drivers.html#consistent-naming-for-jobs-with-zuul-v3

Also, remove name from project stanza, it's not needed for in-tree zuul
files anymore.

Change-Id: Id58a3114a613a5bbca914254cc09cbbbd10913bc

openstack/zaqar,openstack/zaqar,openstack/zaqar,openstack/zaqar