feat: incorporate changes in 8.7.0 and add signal hander

edx_exams/apps/core/signals/signals.py

@@ -1,6 +1,7 @@
 """
 Signal definitions and functions to send those signals for the edx-exams application.
 """
+
 from openedx_events.learning.data import ExamAttemptData, UserData, UserPersonalData
 from openedx_events.learning.signals import EXAM_ATTEMPT_SUBMITTED