README: add Apache Superset to project list

[mistercrunch]

Summary

Stoked to have found ruff and migrated over - quick testimonial ->

Our smooth and fast migration to ruff allowed us to deprecate 4+ other disjointed tools (pycln, pyupgrade, black, isort, flake8) that each had their own CLI subcommands, different enabling/disabling semantics, and pre-commit hooks. I can't wait to add pylint to the list. It's such a no brainer to replace all this with the Ferrari of linters.--add-no-qa and --ignore-noqa are so convenient, but --fix takes it home!

[charliermarsh]

Amazing, thanks for the kind words @mistercrunch!