Non compatible with python 3.12

[aljanaki]

When trying to install muda on the newest python 3.12 the error occurs:
ModuleNotFoundError: No module named 'imp'

the imp module is deprecated in favour of importlib and
slated for removal in Python 3.12

[bmcfee]

This is a simple enough fix to implement, but it's the first week of classes over here and I don't have the time / bandwidth to work on it right now. Which is to say - a PR would be very welcome!