Added support for the uv package and project manager

[GatlenCulp]

Summary

This PR integrates uv — a fast Python package and project manager written in Rust by the team that made the ruff linter — as an environment manager. Updates made to the Makefile and CLI to support this.

Key Changes

• Makefile
  • make create_environment - Added a target to creates a virtual environment with uv and installs the requested python version using uv
  • make requirements simply installs dependencies with uv pip install -r requirements.txt which is faster than normal pip. This does not generate a lockfile and the dependencies will be removed if uv sync is run. (see below for more info)

Testing

• uv added as an additional environment manager in test_creation.py and a harness was added in similar style to the other environment managers. Tests passing locally.
• GitHub actions tests are passing passing

Recommendations

• Consider adding an option with no dependency file and track dependencies in pyproject.toml only. This allows for using the higher-level and convenient uv sync or uv add commands which generate a lockfile. This is also becoming more standard.
  • Using uv add -r requirements.txt after removing -e . from the file will add the dependencies to pyproject.toml and generate the lockfile. This might be a better implementation for make requirements

[jayqi]

Looks good to me.

As a note: When we write the changelog entry for this, we should say that we've added support for the uv pip interface.

We don't support the uv project interface yet, which @GatlenCulp mentioned in the PR description. This requires support for pyproject.toml (new issue #431). We may want to use PEP 735 dependency groups. It'll make sense to work on that in the near future—even regular Pip will be releasing support for them in their April release.