style: 代码格式化

src/heurams/kernel/puzzles/recognition.py

@@ -2,11 +2,12 @@
 from .base import BasePuzzle
 import random
 
+
 class RecognitionPuzzle(BasePuzzle):
     """识别占位符"""
-    
+
     def __init__(self) -> None:
         super().__init__()
-        
+
     def refresh(self):
-        pass
+        pass