v2.3.1

What's Changed

• Update pre-commit config by @fsouza in #295
• github/workflows/main: use pre-commit/action by @fsouza in #297
• Always set encoding when reading setup.cfg by @fsouza in #296
• Bump to v2.3.1 by @fsouza in #298

Full Changelog: v2.3.0...v2.3.1