style: ruff check fix with config from pyproject

Author: YifuTao

Diff for: spires_cpp/example.py

@@ -1,11 +1,6 @@
 from __future__ import annotations
 
-from spires_cpp import (
-    OcTree,
-    convertOctreeToPointCloud,
-    processPCDFolder,
-    removeUnknownPoints,
-)
+from spires_cpp import OcTree, convertOctreeToPointCloud, processPCDFolder, removeUnknownPoints
 
 pcd_folder = "/home/yifu/data/nerf_data_pipeline/2024-03-13-maths_1/raw/individual_clouds_new"
 resolution = 0.1

Diff for: spires_cpp/src/spires_cpp/__init__.py

@@ -1,13 +1,6 @@
 from __future__ import annotations
 
-from ._core import (
-    OcTree,
-    __doc__,
-    __version__,
-    convertOctreeToPointCloud,
-    processPCDFolder,
-    removeUnknownPoints,
-)
+from ._core import OcTree, __doc__, __version__, convertOctreeToPointCloud, processPCDFolder, removeUnknownPoints
 
 __all__ = [
     "OcTree",