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

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

Author: pre-commit-ci[bot]

pandas/core/groupby/generic.py

@@ -3448,4 +3448,4 @@ def _wrap_transform_general_frame(
     elif isinstance(res, DataFrame) and not res.index.is_(group.index):
         return res._align_frame(group)[0]
     else:
-        return res
+        return res