Apply Ruff Formatting

Author: Yftach Zur

pyiceberg/io/pyarrow.py

@@ -836,8 +836,8 @@ def _get_field_name(self, term: BoundTerm[Any]) -> Union[str, Tuple[str, ...]]:
             if full_name is not None:
                 # If the field name contains dots, it's a nested field
                 # Convert "parent.child" to ("parent", "child") for PyArrow
-                if '.' in full_name:
-                    return tuple(full_name.split('.'))
+                if "." in full_name:
+                    return tuple(full_name.split("."))
                 return full_name
         # Fallback to just the field name if schema is not available
         return term.ref().field.name