Filter out certificates for nonexistent courses

ARCH-452: Filter certificate list API based on user profile visibility preference.

ENT-1555 updating edx-enterprise to introduce system wide roles

LEARNER-7086. Uses a new model manager for GeneratedCertificate that excludes
certificates whose course_id does not correspond to a valid CourseOverview

REVEM-219 Handle invalid course run key

Merge pull request #19954 from edx/testeng/bokchoy_auto_cache_update_224fa696472c3fd35f4920ce2f428d351c3a948f

Bokchoy db cache update

Remove flaky studio settings test

Remove flaky lms instructor dashboard test

REVMI-67 update description to describe datetime as user local time

Fixed download txt transcript 500

LEARNER-6946 management command to send verification expiry email

Template for email added (email/verification_expiry_email)
The management command filters the SoftwareSecurePhotoVerification model on the basis of following criteria :
-- the verification is approved
-- the start_date < expiry_date < today or specified days have passed to resend email
After the basic filtering batches are created to send email. For each verification in a batch email is sent and email_expiry_date is set to 15 days from today (default days are 15, it can be changed too)
Between each batch there is a delay of sleep_time seconds

Template for email added (email/verification_expiry_email)
The management command filters the SoftwareSecurePhotoVerification model on the basis of following criteria :
-- the verification is approved
-- the start_date < expiry_date < today or specified days have passed to resend email
After the basic filtering batches are created to send email. For each verification in a batch email is sent and
email_expiry_date is set to 15 days from today (default days are 15, it can be changed too)
Between each batch there is a delay of sleep_time seconds

Improve 403 error handling

LEARNER-7136 populate expiry date and add mechanism for new verification

Method approve() is overridden to accommodate new users that will have their verification approved in the future. The approve() method is called from software secure results callback every time a Software Secure Photo Verification is approved.The method overridden now updates expiry_date and then calls super to perform task it was performing before this change.The expiry_date set is the same as the one sent in verification approval email.

In results_callback for sspv the expiry_date and expiry_email_date for the most recent previous verification if exists are also updated to NULL.

ARCH-472: Add user_id for username in event data.

In certain use cases, a caller may have the username and not the
user_id. In these cases, we add the user_id since events have
standardized on using the user_id as the unique id of a user.

ARCH-472

allow configurability of the minimum price for a course mode

Delete flaky bokchoy tests.

EDUCATOR-4164, EDUCATOR-4165, EDUCATOR-4166

Merge pull request #19937 from edx/matthugs/shore-up-whitespace-on-proctoring-instructions-page-for-PSI-exams

Shore up whitespace on proctoring instructions page for PSI exams

REVMI-95: Cale/fbe access expiry reminder

JIRA:EDUCATOR-4105

Add price information to enrollments and create dashboard_metadata

Remove one-off management commands to rehash retired emails/usernames

Currently, ajax calls in courseware is handling 403 like 401.
In this PR, proper modifications have been done to make it
coherent with its intended behaviour.

LEARNER-7131

remove flaky bokchoy test

REVEM-219 Get program info even if user isn't yet enrolled in the course

Caching full response