fix: adding code owner info to celery tasks (#28040)

Celery tasks needs decorator to correctly add ownership info:
https://github.com/edx/edx-django-utils/blob/master/edx_django_utils/monitoring/docs/how_tos/add_code_owner_custom_attribute_to_an_ida.rst#handling-celery-tasks

lms/djangoapps/instructor/tasks.py

@@ -8,6 +8,7 @@ from django.core.exceptions import ObjectDoesNotExist
 from opaque_keys import InvalidKeyError
 from opaque_keys.edx.keys import UsageKey
 from xblock.completable import XBlockCompletionMode
+from edx_django_utils.monitoring import set_code_owner_attribute
 
 from common.djangoapps.student.models import get_user_by_username_or_email
 from lms.djangoapps.courseware.model_data import FieldDataCache
@@ -20,6 +21,7 @@ log = logging.getLogger(__name__)
 
 
 @shared_task(base=LoggedTask, ignore_result=True)
+@set_code_owner_attribute
 def complete_student_attempt_task(user_identifier: str, content_id: str) -> None:
     """
     Marks all completable children of content_id as complete for the user