Improve packaging

New Feature

What does this MR do?

This MR introduces changes needed for a successful PPA build for Ubuntu systems.
Unfortunately, the PPA method won't work for ubuntu release ditrobutions < Lunar/23.04, but there have been big improvements to the debian package builds, so cloudsmith will stay until 24.04 LTS, when it would be reasonable to create a PPA for it. (If a snap doesn't come along before then)

Related issues

Checklist

• Application works as expected when running from source
• There are dependency changes
• Liquidctl device mock tests are successful (if applicable)
• Any needed documentation changes have been made
• This MR is ready to be merged