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## Summary
From my reading of the [UV
docs](https://docs.astral.sh/uv/guides/scripts/), `mirror.py` would be a
good example of a standalone script. This PR updates `mirror.py` and the
`main.yml` workflow to be a UV script and makes use of UV in the update
process.
## Test Plan
- Update the uv version (currently 0.8.4) to an older version e.g. 0.8.3
in both `pyproject.toml` and `README.md`
- Run `uv run --no-project mirror.py` to check the update process still
works as expected
## Summary
Add a GitHub workflow for creating a new release, automatically, when a
new tag is created.
This solves #78. The code is very similar to the changes added in
https://github.com/astral-sh/uv-pre-commit/pull/6
The primary difference, is that the URL points to ruff and this one
checks for if the tag starts with a `v`, but it is optional. This lets
you change ruff versions to not have a `v` in the future. Although the
`mirror.py` will need to be updated.
Speaking of updates to `mirror.py`, I ran `ruff` on it and updated the
`subprocess` to raise an error on failure.
## Test Plan
Locally tested.
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
- `pre-commit-mirror-maker` is not suitable for generating multiple
hooks in single `.pre-commit-hooks.yaml` file.
- So replaced the script and github workflows.
## Test Plan
<!-- How was it tested? -->
- Update `pyproject.toml`'s `ruff==0.0.290` into `ruff==0.0.289`, and
run the script.
```sh
$ python3 mirror.py
...
```
