[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

monai/apps/nnunet/nnunet_bundle.py

@@ -522,9 +522,9 @@ def subfiles(
         folder: str, join: bool = True, prefix: Optional[str] = None, suffix: Optional[str] = None, sort: bool = True
     ) -> list[str]:
         if join:
-            l = os.path.join  # noqa: E741
+            l = os.path.join
         else:
-            l = lambda x, y: y  # noqa: E741, E731
+            l = lambda x, y: y  # noqa: E731
         res = [
             l(folder, i.name)
             for i in Path(folder).iterdir()