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

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

Author: pre-commit-ci[bot]

data_structures/kd_tree/kd_node.py

@@ -14,7 +14,7 @@ class KDNode:
     def __init__(
         self,
         point: list[float],
-        left:  KDNode | None = None,
+        left: KDNode | None = None,
         right: KDNode | None = None,
     ) -> None:
         """