[Leynos]

Currently, there are things pylint does that ruff doesn't. To use these, I was running pylint on pypy to get it running at a reasonable speed.

Having pylint reimplemented in Rust seems like a very useful thing to have from my perspective. I get another several x speed up, and I can stop having to worry about a separate python interpreter used for one tool that is a few Python versions behind my codebase.