add email to segment traits for enrollment events

pyupgrade in content-type-gating 

BOM-2408: Removed unused imports from openedx/core/djangoapps/content

pyupgrade in course-bookmarks, course-duration 

Adds logging and monitoring capabilities for expected
errors. See the ADR and how-to  documentation for
details of how to configure and use the EXPECTED_ERRORS
setting and new monitoring and logging.

ARCHBOM-1708

Co-authored-by: Tim McCormack <tmccormack@edx.org>

* LEARNER-7611
Get all quality video urls in blocks api
* moved video profiles from blocks api to video_module

BOM-2352: Removed unused imports from lms/djangoapps/{lti_provider, m…

[AA-461] Call celery task directly from management command instead of calling the signal

AA-461

Enable course cert sync for all courses

Removes waffle flag restriction for syncing certificate available dates
to the credentials service.

add traits to segment context for enrollment activated events

fix: enterprise 3.18.6 | The update_role_assignments_with_customers command no longer updates records.  It only creates new records, which helps de-risk the operation.

I had the wrong attribute before this commit, and Django Admin let
me get away with it because it doesn't explode when you try to grab
relations that aren't there–it just quietly returns None in some of
those cases.

feat: mark forum response notifications transactional

The user opts into them when making a post / through the forums UI.
They are not truly a marketing email or similar.

pyupgrade in leaner-profile, lti-course-tab, personalized-learner 

feat: Pass date in cert date update signal

pyupgrade in course-search and discount.

pyupgrade in announcements. 

Ran pyupgrade on openedx/core/djangoapps/{coursegraph, courseware_api, crawlers}