TYPO3 Introduction Package 4.3.0

Changes since 4.2.1

🚀 Features

• [FEATURE] Update Bootstrap Package and add new content elements (#54) by @gilbertsoft

🧰 Maintenance

• [TASK] Fix action input (#59) by @gilbertsoft
• [TASK] Optimize workflows (#58) by @gilbertsoft
• [TASK] Manual upload to TER (#57) by @gilbertsoft