feat: final test in all automatic emails to add course images

lms/djangoapps/instructor/enrollment.py

@@ -142,8 +142,6 @@ def enroll_email(course_id, student_email, auto_enroll=False, email_students=Fal
     """
     previous_state = EmailEnrollmentState(course_id, student_email)
     enrollment_obj = None
-    course_module = modulestore().get_course(course_id, depth=0)
-    email_params['course_image_url'] = f'{settings.LMS_ROOT_URL}{course_image_url(course_module)}'
     if previous_state.user and previous_state.user.is_active:
         # if the student is currently unenrolled, don't enroll them in their
         # previous mode
@@ -446,6 +444,7 @@ def get_email_params(course, auto_enroll, secure=True, course_key=None, display_
         settings.CONTACT_MAILING_ADDRESS
     )
     platform_name = configuration_helpers.get_value('PLATFORM_NAME', settings.PLATFORM_NAME)
+    image_url = f'{settings.LMS_ROOT_URL}{course_image_url(course)}'
 
     # Composition of email
     email_params = {
@@ -456,6 +455,7 @@ def get_email_params(course, auto_enroll, secure=True, course_key=None, display_
         'auto_enroll': auto_enroll,
         'course_url': course_url,
         'course_about_url': course_about_url,
+        'course_image_url': image_url,
         'is_shib_course': is_shib_course,
         'contact_mailing_address': contact_mailing_address,
         'platform_name': platform_name,