fix(ruff): fix deprecated warning

[pcriadoperez]

Fix following warnings:

• warning: ruff <path> is deprecated. Use ruff check <path> instead.
• warning: The top-level linter settings are deprecated in favour of their counterparts in the lint section. Please update the following options in /home/pablo/github/ccxt2/pyproject.toml:
  • 'ignore' -> 'lint.ignore'
  • 'select' -> 'lint.select'

[carlosmiei]

@pcriadoperez how do you get that warning?
locally can't see it

 npm run check-python-syntax

> ccxt@4.3.22 check-python-syntax
> cd python && tox -e qa && cd ..

qa: commands[0]> ruff ./ccxt/
  qa: OK (0.33=setup[0.09]+cmd[0.23] seconds)
  congratulations :) (0.53 seconds)