v2.9.0

What's Changed

• chore: Upgrade Python requirements by @edx-requirements-bot in #553
• chore: Upgrade Python requirements by @edx-requirements-bot in #556
• feat: create get_course_videos_qset API call by @ormsbee in #557
• chore: release 2.9.0 by @ormsbee in #559

Full Changelog: v2.8.0...v2.9.0