Update requirements

Author: piyushroshan

services/chatbot/requirements.txt

@@ -1,11 +1,11 @@
-chromadb==0.4.24
+chromadb==0.5.0
 Flask==3.0.3
 langchain==0.1.16
-langchain_community==0.0.34
-langchain_core==0.1.45
-langchain_openai==0.1.3
+langchain_community==0.0.35
+langchain_core==0.1.47
+langchain_openai==0.1.4
 python-dotenv==1.0.1
-unstructured
+unstructured==0.13.6
 gunicorn==22.0.0
 markdown==3.6
 langchain-mongodb==0.1.3