Minor style change and code cleanup

Signed-off-by: Shivam Sandbhor <shivam.sandbhor@gmail.com>

Author: sbs2001

vulnerabilities/import_runner.py

@@ -24,7 +24,6 @@
 import dataclasses
 import datetime
 import logging
-from itertools import chain
 from typing import Dict
 from typing import List
 from typing import Set
@@ -170,8 +169,7 @@ def _process_added_advisories(data_source: DataSource) -> None:
 
             vulnerabilities = _insert_vulnerabilities_and_references(batch)
 
-            _bulk_insert_impacted_and_resolved_packages(
-                batch, vulnerabilities, impacted, resolved)
+            _bulk_insert_impacted_and_resolved_packages(batch, vulnerabilities, impacted, resolved)
         except (DataError, RuntimeError) as e:
             # FIXME This exception might happen when the max. length of a DB column is exceeded.
             # Skipping an entire batch because one version number might be too long is obviously a