update hybrid_retriever_tool file

tools/hybrid_retriever_tool.py

@@ -3,10 +3,10 @@ from rank_bm25 import BM25Okapi
 from sentence_transformers import SentenceTransformer
 from tavily import TavilyClient
 from openai import OpenAI
-from crewai_tools import BaseTool
+from crewai_tools import RagTool
 import os
 
-class HybridRetrieverTool(BaseTool):
+class HybridRetrieverTool(RagTool):
     name = "Hybrid Retriever Tool"
     description = "Combines BM25 keyword scoring with semantic similarity for hybrid retrieval"