Add pbr to job periodic-{name}-{pyhton}-with-oslo-master
Add pbr to job periodic-{name}-{pyhton}-with-oslo-master

Use master branch of pbr to test before releasing new version of it.

Change-Id: I29d00737aaee3464b49ce7904cfbd8e8ef7dcc92

openstack-infra/project-config,openstack-infra/project-config