[mypy] noqa false positive in NamespaceLoader

Author: Pierre-Sassoulas

src/_pytest/pathlib.py

@@ -711,7 +711,7 @@ def _import_module_using_spec(
         if module_path.is_dir():
             # The `spec_from_file_location` matches a loader based on the file extension by default.
             # For a namespace package, need to manually specify a loader.
-            loader = NamespaceLoader(name, module_path, PathFinder())
+            loader = NamespaceLoader(name, module_path, PathFinder())  # type: ignore[arg-type]
 
         spec = importlib.util.spec_from_file_location(
             module_name, str(module_path), loader=loader