Fix formatting issues

Signed-off-by: Tushar Goel <tushar.goel.dav@gmail.com>

Author: TG1999

vulnerabilities/models.py

@@ -19,7 +19,8 @@
 from itertools import groupby
 from operator import attrgetter
 from traceback import format_exc as traceback_format_exc
-from typing import Dict, List
+from typing import Dict
+from typing import List
 from typing import NamedTuple
 from typing import Optional
 from typing import Set