Update requirements.txt

requirements.txt

@@ -1,12 +1,16 @@
-streamlit==1.28.0
-openai==1.3.6
-numpy==1.26.0
-PyPDF2==3.0.1
-Pillow==10.0.1
-pytesseract==0.3.10
-faiss-cpu==1.7.4
-langchain==0.0.346
-transformers==4.34.0
-torch==2.0.1
-python-dotenv==1.0.0
-httpx>=0.24.0  # Only needed if using proxies
+pybase64  
+langgraph 
+streamlit
+opencv-python
+pillow
+pdf2image
+pytesseract
+numpy
+langchain
+faiss-cpu
+openai
+tiktoken
+nltk
+spacy
+langchain-community
+PyPDF2==3.0.1