Use Ruff instead of Black+isort+Flake8

[Dev-iL]

Ruff is faster, and some might say more modern, alternative to multiple other tools.

• This PR turns on a subset of Ruff that is equivalent to Black, isort, and no-plugin flake8, combined.
• This is a continuation of Transition to packaging & configuration using pyproject.toml #1088.

Changes

(See individual commit titles)

How I tested this

Evaluated the pre-commit hooks until they passed.

Notes

As discussed on Slack, some inspections, when enabled (or unexcluded), detect a lot of violations, so enabling rules and rule families will need to be done carefully. This will require an additional effort, potentially outside the scope of this PR.

Checklist

• PR has an informative and human-readable title (this will be pulled into the release notes)
• Changes are limited to a single goal (no scope creep)
• Code passed the pre-commit check & code is left cleaner/nicer than when first encountered.
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output)
• Placeholder code is flagged / future TODOs are captured in comments
• Project documentation has been updated if adding/changing functionality.

[skrawcz]

Exciting!