Update app.py

Install decord

app.py

@@ -5,7 +5,7 @@
 import os
 import base64
 import numpy as np
-os.system('pip install huggingface_hub gradio openai keye_vl_utils einops opencv-python torch torchvision -U')
+os.system('pip install huggingface_hub gradio openai keye_vl_utils decord einops opencv-python torch torchvision -U')
 
 from argparse import ArgumentParser
 from pathlib import Path