Add custom django check for validating that project is run with the correct python version

[Ivo-Donchev]

We could add custom check (https://docs.djangoproject.com/en/4.1/ref/checks/) if the project is being ran with wrong python version. It'll specify the ONLY python version that the project is supposed to work with.

This will catch following issues:

• development team works the project with different python versions
• project is being built with older python version and some of the syntax is not present
• project being deployed with older python version