Clone DIB repos with git before zuul-cloner
Clone DIB repos with git before zuul-cloner

Work around a bug causing zuul-cloner to explode when cleaning up the
DIB git repos.

Change-Id: I4c21122f3e1a6c64480c66daf3c69b5a22b9eff1

citrix-openstack/project-config,openstack-infra/project-config,openstack-infra/project-config,coolsvap/project-config,coolsvap/project-config,dongwenjuan/project-config,Tesora/tesora-project-config,noorul/os-project-config,anbangr/osci-project-config,noorul/os-project-config,anbangr/osci-project-config,Tesora/tesora-project-config,citrix-openstack/project-config,dongwenjuan/project-config