LifterLMS Assignments Version 1.2.0

Updates and Enhancements

• Raised the minimum supported LifterLMS Core version to version 5.3.0.
• Raised the minimum supported WordPress core version to 5.5.
• Raised the minimum supported PHP version to 7.4.
• Replaced deprecated LLMS_Interface_Post_Audio and LLMS_Interface_Post_Video with LLMS_Trait_Audio_Video_Embed.