OCH5P Moodle 3.9 - 4.1 (v3.0-r1)

This version contains the following changes:

• Compatibility with Opencast Plugins (v4.0-r1)
• Improved UI/UX by adding labels to the dropdowns
• Remove support for Moodle 3.8
• Moodle versions 3.9 - 4.1
• Behat testing
• GitHub actions