Fix isort error in utils.pyx (#8771)

Not sure if it was the timing of the gpuCI `isort` bump relative to the updated pre-commit hooks here, but #8749 introduced a sorting error in `utils.pyx` that wasn't caught by gpuCI at the time of merging.

Authors:
  - Charles Blackmon-Luca (https://github.com/charlesbluca)

Approvers:
  - GALI PREM SAGAR (https://github.com/galipremsagar)
  - Nghia Truong (https://github.com/ttnghia)

URL: #8771

python/cudf/cudf/_lib/utils.pyx

@@ -27,7 +27,6 @@ from cudf.utils.dtypes import (
     np_to_pa_dtype,
 )
 
-
 PARQUET_META_TYPE_MAP = {
     str(cudf_dtype): str(pandas_dtype)
     for cudf_dtype, pandas_dtype in cudf_dtypes_to_pandas_dtypes.items()