WIP: Add 'uv-run' hook

[danielhollas]

There are two obvious use cases for having a uv run pre-commit hook:

1. Launching python scripts with inline-dependencies (PEP-723), see Add uv-run hook #37 (comment) for detailed example.
2. Launching tools (the most obvious is mypy, as described in details in ) within the project environment. Running tools through pre-commit #14 (comment)

The main disadvantages to using the uv-run hook as defined in this PR is that it won't work on pre-commit.ci service since it needs network access, which is forbidden during hook execution on pre-commit.ci service. But that is the case for other hooks in this repo as well.

TODO:

• Documentation

Closes #37. Closes #14.

[danielhollas]

Superceded by #53