zuul/layout: add puppet-unit 4.5 jobs
zuul/layout: add puppet-unit 4.5 jobs

We recently added 4.5 jobs but I missed the zuul layout so job actually
exist and run.

Change-Id: I547d027b7b39b0c78045eea558cd82e5b19a3634

dongwenjuan/project-config,Tesora/tesora-project-config,openstack-infra/project-config,dongwenjuan/project-config,openstack-infra/project-config,Tesora/tesora-project-config