some ci tweaks

Author: dougbrn

src/nested_pandas/nestedframe/core.py

@@ -1,7 +1,6 @@
 # typing.Self and "|" union syntax don't exist in Python 3.9
 from __future__ import annotations
 
-import warnings
 from collections import defaultdict
 from collections.abc import Callable, Sequence
 from typing import Literal

tests/nested_pandas/nestedframe/test_nestedframe.py

@@ -1156,10 +1156,9 @@ def make_id(row, prefix_str):
 
     # Check for output_names length error
     with pytest.raises(ValueError):
-        result = nf.map_rows(get_max,
-                             columns=["packed.c", "packed.d"],
-                             output_names=["only_one_name"],
-                             row_container="args")
+        result = nf.map_rows(
+            get_max, columns=["packed.c", "packed.d"], output_names=["only_one_name"], row_container="args"
+        )
 
     # Verify that append_columns=True works as expected.
     # Ensure that even with non-unique indexes, the final result retains