MDL-65248 analytics: Replace upgrade script to apply for all moves
While strictly we don't nedd to provide an upgrade path for master,
any dev/integration site already using some of the 3.7 new tagets
in models will break (class rename/move) if we don't perform the
update of all them.
This commit takes rid of the previous upgrade step, only performing
the update of a couple of targets and now supports all the (5) targets:
- course_dropout
- course_competencies
- course_completion
- course_gradetopass
- no_teaching
