By doing that, we compute (every bootstrap ansible) the version
of OSA, which is then used in playbooks using an env lookup.
This is faster than doing the lookup pipe of version in the variable, as
this would be computed once, gaining around 0.4s per playbook.
This is about as fast as the current static code, and doesn't
require bumping at every release.
This also allows more flexible releasing (no need to bump metadata here
for a minor bump anymore), as we would have only one source of truth.
Change-Id: I75657c6dae2c6246ec2513f4ec452a4c354d638b
(cherry picked from commit c44fbcbbe3)
(cherry picked from commit a30ce47845)
(cherry picked from commit 7e0d2e5e5c)
c75211306d