Use UV

[Dhananjhay]

This PR switches out poetry for uv for managing packages and makes appropriate changes to the Continuous integration (CI) pipeline for quality checks and dry runs.

[akhanf]

Nice! I'll try to give it a try soon.

This reminds me it would be nice to make some lab/superlab repo templates with uv and related ci, or at least update snakebids create to provide a uv option.

[Dhananjhay]

Agreed! Right now in this PR hippunfold's CI pipeline uses locally added action.yml based on uv package manager for running python tests through python-testing.yml but we can add the same action.yml in https://github.com/khanlab/actions which then users can then pull from and use it in their own repos. I can also get started on adding uv option for command line command snakebids create.

[Dhananjhay]

With the recent discussion re: package manager it no longer makes sense to use UV.