update pre-commit config (#18860)

examples/runtime/engine/save_remote_state.py

@@ -18,6 +18,7 @@ llm = Engine(
     tensor_parallel_size=8,
 )
 """
+
 import dataclasses
 from argparse import ArgumentParser
 from pathlib import Path

examples/runtime/engine/save_sharded_state.py

@@ -21,6 +21,7 @@ llm = Engine(
     tensor_parallel_size=8,
 )
 """
+
 import dataclasses
 import os
 import shutil