dummy support for uv-installed pythons

[saucoide]

A question more than a PR, now that uv supports bringing its own pythons, i wanted to try simplify a CI and not have to install python from other sources, but nox is currently now able to find uv-installed pythons (someone else's issue @UV about this same thing astral-sh/uv#6579 )

would it make sense to add a more fleshed out version of this? meaning passing the desired interpreter to uv venv -p {interpreter}, or should this be done by other mechanism that adds uv's python interpreters to $PATH ?

note: this is just a draft to show an example, kind of works but also breaks tests and probably breaks uv|virtualenv and other things

[henryiii]

I think it makes sense, especially if it's roughly this easy. :)

[saucoide]

@henryiii i've updated this a bit, but there is a failing test locally test__resolved_interpreter_windows_path_and_version_fails which i dont quite understand though :/

[saucoide]

im not happy about ignoring the uv-python cases for those windows tests, but i am not familiar with how nox works on windows to touch that part, so if anyone has any ideas it'll be helpful