0.3.0 update dependencies

What's Changed

• enable dependabot by @othillo in #4
• Bump actions/checkout from 2 to 4 by @dependabot in #5
• Bump ramsey/composer-install from 1 to 2 by @dependabot in #6
• phpunit --migrate-configuration by @othillo in #8
• 4 spaces for composer.json by @othillo in #9
• test with lowest and highest dependency versions by @othillo in #10
• standardize matrix by @othillo in #11

New Contributors

• @dependabot made their first contribution in #5

Full Changelog: 0.2.0...0.3.0