Update requirements.txt

requirements.txt

@@ -1,4 +1,6 @@
-transformers>=4.38.0
-torch>=2.1.0
-gradio>=4.0.0
-huggingface-hub>=0.19.0
+transformers==4.38.0
+torch==2.1.0
+gradio==4.0.0
+accelerate==0.27.0
+huggingface-hub==0.19.0
+bitsandbytes==0.41.0  # For 4-bit quantization