changed for step reasoning

Author: Gabefire

libs/labelbox/src/labelbox/schema/tool_building/step_reasoning_tool.py

@@ -1,6 +1,7 @@
 import warnings
-from dataclasses import dataclass, field
+from dataclasses import field
 from typing import Any, Dict, List, Optional
+from pydantic.dataclasses import dataclass
 
 from labelbox.schema.tool_building.tool_type import ToolType