chore: fix mypy AGAIN (breaking on CI, not locally)

src/nitpick/style/fetchers/pypackage.py

@@ -8,7 +8,7 @@
 
 try:
     from importlib.abc import Traversable  # type: ignore[attr-defined]
-    from importlib.resources import files
+    from importlib.resources import files  # type: ignore[attr-defined]
 except ImportError:
     from importlib_resources import files
     from importlib_resources.abc import Traversable