Staff Notification Added

Added staff notification on learner submissions using openedx-events.

What's Changed

• build: Update codecov and use the new token. by @feanil in #2206
• feat: add ora filter for submission step rendering by @BryanttV in #2204
• feat: send staff notification when ora submission is created by @BryanttV in #2203
• Added Notifications for staff. by @AhtishamShahid in #2201

Full Changelog: v6.6.2...6.7.0