Use master branch of transformers

app.py

@@ -1,6 +1,5 @@
 import os
-os.system('pip install gradio --upgrade')
-os.system('pip install git+https://github.com/NielsRogge/transformers.git@add_dino --upgrade')
+os.system('pip install git+https://github.com/huggingface/transformers.git --upgrade')
 
 import gradio as gr
 from transformers import ViTFeatureExtractor, ViTModel