Code review comment for ~jugmac00/launchpadlib:add-minimal-CI-configuration

Thanks for this idea, Andrey!

I think this is absolutely fine for most of our packages, but not perfect for `launchpadlib`, as this is a client library, which our users install, and we have no control over which Python version they would use, e.g. a friend of mine works for Red Hat and still uses `launchpadlib` and he runs Fedora with the whatever Python version he prefers.