Fix task register (#3805)

* fix schedule registration

* add collection step for tasks

* make tasks register configurable

* extend docs

* Also run InvenTree setup in testing

* fix import loading method

* fix wrong task registration

* do not test

* do only distinct testing

* ignore import error for coverage

InvenTree/build/tasks.py

@@ -144,6 +144,7 @@ def notify_overdue_build_order(bo: build.models.Build):
     trigger_event(event_name, build_order=bo.pk)
 
 
+@InvenTree.tasks.scheduled_task(InvenTree.tasks.ScheduledTask.DAILY)
 def check_overdue_build_orders():
     """Check if any outstanding BuildOrders have just become overdue