Bump actions/*-artifact and ramsey/composer-install

What's Changed

• Bump actions/download-artifact from 6 to 7 by @dependabot[bot] in #79
• Bump actions/upload-artifact from 5 to 6 by @dependabot[bot] in #78
• Bump ramsey/composer-install from 3 to 4 by @dependabot[bot] in #82
• Bump actions/download-artifact from 7 to 8 by @dependabot[bot] in #81
• Bump actions/upload-artifact from 6 to 7 by @dependabot[bot] in #80

Full Changelog: 13.1.0...14.0.0