fix: Prevent downgrading conflicting Ansible packages in the same command

[jacobgkau]

This fixes #340 and should work with all corner cases I can think of regarding the Ansible packages. Ubuntu's weird Ansible packaging seems to only exist on 22.04 (20.04 didn't have an ansible-core package, so I'm guessing it was this way for a historical reason when the ansible-core package was first being introduced); for that reason, this case handling checks the version number and only applies for the 22.04 version (for upgrades to 24.04).

Testing (WIP):

• When ansible-core and ansible were installed from the PPA, removes ansible-core and keeps ansible installed (fixes Fails to downgrade packages when Ansible is installed from PPA #340).
• When only ansible-core is installed from the PPA (and ansible is not installed from anywhere), keeps ansible-core installed.
  • The PPA's ansible depends on ansible-core, so the reverse (having the PPA's ansible but no ansible-core) is not a possible configuration.
• When ansible-core is installed from the PPA but ansible is installed from Ubuntu, removes ansible-core.
  • Not a possible configuration due to file conflicts.
• When ansible-core is installed from Ubuntu (via apt pin) but ansible is installed from the PPA, removes ansible-core.
  • Works because ansible is still downgraded to the Ubuntu version, and because ansible-core isn't on the downgrade list, apt is able to automatically remove it.
• When either ansible-core or ansible is installed from the Ubuntu repo (without the PPA added), keeps it installed.
  • ansible-core only from Ubuntu
  • ansible only from Ubuntu
  • The 22.04 Ubuntu repo doesn't allow installing both at once.
• Upgrade with neither package installed still succeeds.

In all of the cases where ansible was installed from any source, once on 24.04, Ubuntu's ansible-core is installed as a dependency of Ubuntu's ansible, because this weird Ubuntu packaging is only on 22.04. (In all cases where ansible-core only was installed from any source, once on 24.04, only ansible-core is installed.)