March 2023 minor release

This minor release introduces a lot more quality assurance checks in Github Actions, along with a small bugfix when using an element's data-* attributes.

What's Changed

• CI upgrade by @g105b in #422
• CI type safety by @g105b in #427
• ci: introduce phpcs, phpmd by @g105b in #428
• dataset camel case bugfix by @g105b in #434

Full Changelog: v4.1.0...v4.1.2