Removed an unused import from the accounting_accounts management command in the accounting application.

accounting/management/commands/accounting_accounts.py

@@ -19,7 +19,7 @@
 
 """
 import getpass
-from typing import Optional, Dict
+from typing import Optional
 
 from django.contrib.auth import get_user_model
 from django.core.exceptions import ObjectDoesNotExist