silence flake8 for extract_cmd

Author: ThomasWaldmann

setup.cfg

@@ -126,6 +126,7 @@ per_file_ignores =
     src/borg/archiver/debug_cmd.py:F405
     src/borg/archiver/delete_cmd.py:F405
     src/borg/archiver/diff_cmd.py:F405
+    src/borg/archiver/extract_cmd.py:F405
     src/borg/archiver/help_cmd.py:E501,F405
     src/borg/archiver/key_cmds.py:F405
     src/borg/archiver/prune_cmd.py:F405