chore: update ruff configs

[AlessandroMiola]

Summary:

• 2fe2ffa:
  • pyproject.toml: ignore line-too-long (E501) rule; (in the spirit of ruff) it is not very convenient to enforce E501 rule while using black (or ruff) as a formatter ¹ as black itself will try to autoformat lines according to the line-length setting where possible; there might be situations where autoformatting is not possible and in such cases enforcing E501 will result in linting errors (unless a # noqa specification is there)

Footnotes

1. indeed notice that, if I were to use ruff's default selection setting, E501 rule would be omitted as consequence of overlapping with the use of the formatter (see https://docs.astral.sh/ruff/tutorial/#configuration). By default, ruff enables F rules (flake8 compliant) and a subset of E rules (among which you won't find E501), namely those stylistic rules that do not overlap with the use of a formatter (like black or ruff formatter itself)
   See also https://docs.astral.sh/ruff/faq/#is-the-ruff-linter-compatible-with-black:

   Ruff is designed to be used alongside a formatter (like Ruff's own formatter, or Black) and, as such, will defer implementing stylistic rules that are obviated by automated formatting.

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