style: fix imports

edx_exams/apps/core/management/commands/bulk_add_course_staff.py

@@ -1,8 +1,8 @@
 """Management command to populate the CourseStaffRole model and related User objects, from LMS, using CSV"""
+import csv
 import logging
 import time
 
-import csv
 from django.core.management.base import BaseCommand
 from django.db import transaction