[TNL-7970] - Convert anonymized id report code to an instructor task. (#26778)

lms/djangoapps/instructor/tests/test_api.py

lms/djangoapps/instructor/views/api.py

lms/djangoapps/instructor_task/api.py

lms/djangoapps/instructor_task/tasks.py

lms/djangoapps/instructor_task/tasks_helper/misc.py

lms/djangoapps/instructor_task/tests/test_api.py

lms/static/js/instructor_dashboard/data_download.js

...ates/instructor/instructor_dashboard_2/data_download.html