Update requirements.txt

requirements.txt

@@ -1,11 +1,11 @@
-fastapi==0.104.1
-uvicorn[standard]==0.24.0
-pandas==2.1.3
-httpx==0.25.1
-pydantic==2.5.0
-pydantic[email]
-python-multipart==0.0.6
-langchain==0.0.350
-langchain-openai==0.0.5
-openai==1.3.7
-python-dotenv==1.0.0
+fastapi
+uvicorn[standard]
+pandas
+httpx
+pydantic
+pydantic[email]
+python-multipart
+langchain
+langchain-openai
+openai
+python-dotenv