Update of cliff to v2.2.0
Update of cliff to v2.2.0

 * Add build time dependencies
 * Fixed %check - previously call of test did nothing due absence
   of testrepository and wrong call of test itself.
   Tests call got from tox.ini
 * setup.py test do nothing except downloading test-requirements
   and exits with exit code 0
 * remove pbr from runtime dependency

Change-Id: I9f4e7d67cd4a3953148120b11191b2e34515b318

openstack/rpm-packaging,openstack/rpm-packaging