v0.3.1

What's Changed

• Silence vulture by @piotr-rarus in #41
• Dev/separate json formatter from pre commit by @piotr-rarus in #52
• Bump pre-commit from 2.21.0 to 3.1.1 by @dependabot in #49
• Bump mypy version to 1.1.1 by @piotr-rarus in #53

Full Changelog: v0.3.0...v0.3.1