Add python3-pip as build dependency

[rcrdnalor]

Commit MythTV/mythtv@8ece26b added python3-pip as build dependency (in configure) for modern Linux variants.

Updated specs for Ubuntu >= 23.04, Debian 12 and Fedora 39+.

• MythTV master for Ubuntu 23.04 is already build with python3-pip on Launchpad.
• Debian 12 has a recent version of python3-pip.
• Fedora 39, once released has python3.12 which requires python3-pip for building.

Note: For Debian and its derivatives, the package python3-pip depends on python3-wheel.

Completely untested.

[rcrdnalor]

@billmeek : Could you please review it ?

[billmeek]

Will do when I get back. Probably next week.

[kmdewaal]

Updating ansible with PR36 and then executing gives this:

klaas@kasus:~/git/ansible$ ./mythtv.yml --limit=localhost
[DEPRECATION WARNING]: [defaults]collections_paths option, does not fit var naming standard, use the singular form collections_path instead. This feature will be removed from ansible-core in version 2.19. Deprecation warnings
 can be disabled by setting deprecation_warnings=False in ansible.cfg.

[kmdewaal]

Hi Roland, from your comment on issue #848

On Ubuntu, you need only install the python3-pip package.
On Fedora 39, you need to install the python3-wheel package as well.

Tested this also yesterday on Fedora 39 but I the python3-wheel was not installed by ansible.
Does it still need to be added or did I miss something?