Update requirements.txt

requirements.txt

@@ -1,11 +1,8 @@
-# requirements.txt
-streamlit>=1.32
-transformers>=4.37
-torch>=2.1
-pandas>=2.1
-PyPDF2>=3.0
-openpyxl>=3.1
-accelerate>=0.26
-xformers>=0.0.23
-huggingface_hub>=0.19
-peft
+streamlit>=1.27.0
+torch>=2.1.0
+transformers>=4.40.0
+peft>=0.8.2
+huggingface_hub>=0.23.0
+accelerate>=0.27.0
+scipy>=1.10.0
+# bitsandbytes is optional depending on device