Remove uninspect dependency

[hellow554]

On my arch linux I have python 3.13, which clearly is supported, since the readme states 3.7+ ;)

The problem when trying to install magma-lang via pip:

ERROR: Ignored the following versions that require a different python version: 0.7 Requires-Python >=3.6, <3.7; 0.8 Requires-Python >=3.6, <3.7
ERROR: Could not find a version that satisfies the requirement uinspect (from magma-lang) (from versions: none)

There aren't many places where uninspect is used, so I think it would be quiet easy to remove that dependency and convert it to the official inspect lib.

Thanks a lot!