Resolve langchain dependency conflicts for Space build

requirements.txt

@@ -1,20 +1,20 @@
-requests==2.31.0
-beautifulsoup4==4.12.2
-openai==1.35.0
-lxml==4.9.3
-flask==2.3.3
-werkzeug==2.3.7
-flask-cors==4.0.0
+requests
+beautifulsoup4
+openai
+lxml
+flask
+werkzeug
+flask-cors
 
 # LangChain and Vector Database dependencies
-langchain==0.1.20
-langchain-community==0.0.41
-langchain-openai==0.0.8
-langchain-chroma==0.0.5
-langchain-huggingface==0.0.2
-chromadb==0.4.18
-tiktoken==0.5.2
-sentence-transformers>=2.2.2,<2.6
+langchain
+langchain-community
+langchain-openai
+langchain-chroma
+langchain-huggingface
+chromadb
+tiktoken
+sentence-transformers
 
 # Firebase integration
 firebase-admin