Update Ruff config

[jarrodmillman]

Description

1. Update pyproject.toml to use ruff's new linter settings (the old way has been deprecated).
2. Use project.requires-python instead of tool.ruff.target-version as recommended by ruff.
3. Use NPY201 linter rule (hopefully this would have caught things like Use numpy.inf instead of deprecated numpy.infty #7386.
4. Remove line-length and exclude.

Checklist

• A descriptive but concise pull request title
• Docstrings for all functions
• Unit tests
• A gallery example in ./doc/examples for new features
• Contribution guide is followed

Release note

We use changelist to
compile each pull request into an item of the release notes. Please refer to
the instructions
and past release notes
for guidance and examples.

...

[lagru]

Happy with all the changes here except for the one noted.

[lagru]

Approving on the condition that the CI is happy. :)