We have a minimum supported version of Ansible, currently 2.5. We should
test this in addition to the latest version. This change tests latest on
Ubuntu, and minimum on other distros.
Change-Id: I45a7173139f057177a71e919ad3e718a99d9f87b
(cherry picked from commit b9da05be556ad8fb847d968a7240557829c5bfdb)