Update requirements.txt

requirements.txt

@@ -1,11 +1,11 @@
-gradio==3.50.2
-langchain==0.2.16
-langchain-community==0.2.16
-langchain-huggingface==0.0.3
-chromadb==0.5.5
-pypdf2==3.0.1
-docx2txt==0.8
-python-pptx==0.6.23
-huggingface_hub==0.23.4
-sentence-transformers==2.7.0
+gradio==3.50.2 
+langchain==0.2.16 
+langchain-community==0.2.16 
+langchain-huggingface==0.0.3 
+chromadb==0.5.5 
+pypdf==4.3.1 
+docx2txt==0.8 
+python-pptx==0.6.23 
+huggingface_hub==0.23.4 
+sentence-transformers==2.7.0 
 torch==2.3.0