v3.1.2

What's Changed

• Update .gitattributes (exclude psalm config & examples from export) by @tarampampam (#8)
• Update tests by @roxblnfk (#9)
  • add mutation testing
  • fix Psalm issues
  • add PHP 8.1 in CI
  • add preffer-stable mode in ci
  • update dependencies

New Contributors

• @roxblnfk made their first contribution in #9

Full Changelog: v3.1.1...v3.1.2