Update app.py

app.py

@@ -14,7 +14,7 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 import os
 from huggingface_hub import InferenceClient
 from langchain_core.tools import Tool
-from langchain_community.tools import DuckDuckGoSearchRun
+from ddgs import DDGS
 from langchain_core.prompts import PromptTemplate
 import re