playbook: Always use latest yum packages
playbook: Always use latest yum packages

Use 'latest' directive with yum module. Ensures we always use latest
lago packages.

Signed-off-by: Roy Golan <713b85d0d8cd34d573c78a20da961d7424e4b81a@redhat.com>

lago-project/lago-examples,lago-project/lago-examples