Remove setuptools from requirements on Python 3.12

[ty-porter]

We are moving to a new version of pyowm in scoreboard version 8.5.3, which should have alleviated our dependency on setuptools in newer Pythons.

Should evaluate whether this is still needed and remove it if not.

https://github.com/MLB-LED-Scoreboard/mlb-led-scoreboard/blob/635ff8f266df3c82684ece839a86518ee09574a8/requirements.txt#L6

Change was introduced in #570 for historical context