Don't run puppet tests on rst/unit test changes
Don't run puppet tests on rst/unit test changes

If the change is only for rst file or unit test on tempest,
don't run the puppet changes for avoiding much test operation time.

Change-Id: I0315210bf6fc7e18a5ef4291856921269da015db

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