Drop support for Python 3.8 (10/2024)

[afuetterer]

Python 3.8 reaches EOL in 10/2024.

Refs:

• https://devguide.python.org/versions/#supported-versions
• Drop support for Python 3.6 and 3.7? #648

[MyPyDavid]

yes, this is a good one.
Maybe we should spread this info into the community so that instance admins can do (or prepare for) an upgrade. Except for upgrading the Python installation on the OS there shouldn't be any troubles AFAIK..

[afuetterer]

No more security patches should be argument enough, right?

[jochenklar]

I think we should support 3.8 as long as we can. I think when we ditched 3.6 and 3.7 it was beacause we wanted to use pyproject.toml. Updating the VM where RDMO is running is troublesome, and it will keep people from updating RDMO.