5.3.0 🌈

Changes

• Huge Improvements to php artisan backpack:install command (#4559 - thanks to @promatik)
• [bug] fix when ConvertEmptyStringsToNull is disabled for M-M relations (#4528 - thanks to @basselhossam)
• Update README.md (#4567 - thanks to @tabacitu)
• use main branch for release-drafter (#4566 - thanks to @tabacitu)
• trigger the delete events for each of related deleted model (#4543 - thanks to @pxpm)

Dependency bumps

• Bump sass from 1.52.2 to 1.54.0 (#4562 - thanks to @dependabot)
• Bump ckeditor4 from 4.19.0 to 4.19.1 (#4565 - thanks to @dependabot)
• Bump vue-template-compiler from 2.7.0 to 2.7.8 (#4564 - thanks to @dependabot)