Add poetry and linting#450

Merged

PaulWestenthanner merged 3 commits intoscikit-learn-contrib:masterfrom

PaulWestenthanner:improve_type_hints

Jan 7, 2025

Commits on Jan 7, 2025

Use poetry for packaging and update tooling
PaulWestenthanner
committed
Remove intercept from Contrast Coding Schemes. Fixes #370
PaulWestenthanner
committed
Deprecate Python 3.9, add Python 3.13
PaulWestenthanner
committed