refactor: use dependency groups

[nstarman]

PEP 735 not yet supported by hatch?

[wesselb]

@nstarman That is unfortunate! I wasn’t aware that dependency groups are possible. I love it!

[nstarman]

Would you be interested to use uv in the CI? https://docs.astral.sh/uv/guides/integration/github/#syncing-and-running
uv is not a build backends, so there's no change re hatch, its just the frontend commands. See https://github.com/GalacticDynamics/unxt for an example where hatch is the backend but uv is used for installing / running stuff.

[wesselb]

@nstarman I think so! I haven’t used uv, but it looks great. Would you recommend uv?

[nstarman]

Very much so!

[wesselb]

Let’s do it then!!