[WIP] feat: use uv as a pip alternative

[MoisesGSalas]

uv is a new package installer/resolver written in rust by the same people that wrote ruff.

This is a small test to assess the viability of using uv instead of pip. It presents it self as a drop in replacement for pip, and for the most part it is, I only had to apply a single change due to limitations in editable VCS packages.

Tests

Using --target=python-requirements:

uv

1. An initial build without cache (--no-cache): 5m08s, 97s on pip install base.txt
2. Second build without cache: 4m58s, 94s on pip install base.txt
3. Break cache with a manual instructions (RUN touch /tmp/a) before installing base.txt: 2.36s, 1s on base.txt

pip

1. An initial build without cache (--no-cache): 7m29s, 234s on pip install base.txt
2. Second build without cache: , 7m15s, 223s on pip install base.txt
3. Break cache with a manual instructions (RUN touch /tmp/a) before installing base.txt: 1m06s, 57s one base.txt.

[regisb]

Hey Moises, these figures are getting everyone excited :) Do you think you'll be able to take this PR out of draft state? Or do you need some review?

[MoisesGSalas]

Hi @regisb, sorry for leaving this abandoned. I can work on this, but first I wanted to know people's opinion about the tool.

IMO the tool is pretty awesome and slots in almost perfectly, the same applies to the other tool developed by the same team ruff. But considering it still has not reached v1.0.0 I wonder if some people may be worried about that.

If the overall feeling is that it's worth a shot, I can clean up the PR and have it ready for review.

[regisb]

Yes, ruff is awesome, to the point that I'm considering migrating the entire code base from pylint/black to ruff. But let's talk about this another day. For now I'd be curious to see this PR brought to completion.