Update vulnerabilities/import_runner.py

Co-authored-by: Philippe Ombredanne <pombredanne@gmail.com>

Author: Hritik14

vulnerabilities/import_runner.py

@@ -66,7 +66,7 @@ def run(self) -> None:
 def process_advisories(advisory_datas: Iterable[AdvisoryData], importer_name: str) -> List:
     """
     Insert advisories into the database
-    Return list of ids of inserted advisories
+    Return the number of inserted advisories.
     """
     count = 0
     for data in advisory_datas: