Adds username replacement API

ENT-1500 Update third_party_auth pipeline to override get_username

WL-1899 | 500 error when SAML attribute is mapped + present, but has no value

Use ==/!= to compare str, bytes, and int literals

added fix for broken 'enroll in class' button on about course page

do not show FBE upsell to full access users

TE-2871 Switch to mysqlclient

Don't send Access Expiry Emails to courses that don't have Course Dur…

Revert "geoip2: update maxmind geolite country database"

update Studio How It Works images to reflect current state of Studio

This reverts commit 8e2b68e3.

We are doing this for two reasons:
1. We suspect that the get_username function in social_core is performing a case-sensitive
username check which is breaking when we try to create the user with a duplicate username.
This version ensures we perform a case insensitive check.

2. If it's not that, we want more logging information in order to debug the issue.

Merge pull request #20020 from edx/testeng/bokchoy_auto_cache_update_c5af88e0004bfcbcc5076f70a5adce561f783218

Bokchoy db cache update

ur'strings' are syntax errors in Python 3

Continue attempting to enqueue messages even if they are disabled for…

Fbe/get courses batched

Fix csrf token error by adding JwtAuthentication.

[INCR-16] upgrade shapely

Dashboard announcements feature

Reapply "Improve the performance of access checking for a specific user in CourseViewList by prefetching data"

This reverts commit d8cd6135.

BasketView post endpoint is raising csrf token
error because of missing JwtAuthentication class.

LEARNER-6607

REVMI-138 don't error if somethings wrong, just warn

Merge pull request #19988 from raccoongang/fix_errors_not_shown_at_instructor_dashboard_course_team_management

Fix bug: error messages are not shown in Course Team Management