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

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

Author: pre-commit-ci[bot]

narwhals/_pandas_like/namespace.py

@@ -341,7 +341,7 @@ def func(df: PandasLikeDataFrame) -> list[PandasLikeSeries]:
             df = self.concat(
                 (s.to_frame() for s in series_list), how="horizontal"
             )._native_frame
-            
+
             try:
                 import pandas as pd
                 import pyarrow.compute as pc