PEP 723 opens up an interesting opportunity for Nox.

I don't know about the rest of you, but when I run Nox it's via `pipx run nox`. That's very convenient, but it does mean my `noxfile.py` has no dependencies. But w/ PEP 723, I can have my tool -- which will probably be pipx once it gets PEP 723 support -- pull down Nox **and** any other packages I wanted to use in my `noxfile.py` file. To me that suggests PEP 723 could open up the possibility of Nox utilities becoming a thing. 🙂