Python and Django upgrades

[Didayolo]

This issue is to keep track of the Python package upgrades we need to take care of.

Python

• Version >= 3.12 everywhere (Various packages upgrades (Django 5.2) #2200)

Django

• v3 (Django to 3.0 #1730)
• v4 (Django to 4.2.0 #1959)
• v5 (Various packages upgrades (Django 5.2) #2200)