Update to Python 3.12

[BBBmau]

Fixes #32516

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[BBBmau]

For context: I went ahead and created a python package from my metadrive PR just so we don't have to wait. We can change it to be the original metadrive package once a new release is made with it.

https://pypi.org/project/metadrive-simulator-py3-12/0.2.0/

[BBBmau]

This seems like a common issue with moving to 3.12: ModuleNotFound Error: No module named six.moves``

I see a lot of mentions and how using 3.11 fixed it 😕

Datalux/Osintgram#947 (comment)

[BBBmau]

removing --system-site-packages solved the previous issue that I was having where six modules were not being found.

[BBBmau]

closing since this relies on pyenv being removed. Making a new PR that adds support with pyenv present.