PHP 8.4 support

What's Changed

• Bump actions/download-artifact from 1 to 4.1.7 in /.github/workflows by @dependabot[bot] in #24
• Bump actions/upload-artifact by @jakzal in #25
• Allow PHP 8.4 by @jakzal in #26
• Update box (3.16.0 -> 4.2.0) by @jakzal in #28

New Contributors

• @dependabot[bot] made their first contribution in #24

Full Changelog: v1.9.2...v1.9.3