Update app.py

app.py

@@ -1,4 +1,5 @@
 import subprocess
+subprocess.check_call(["$", "pip", "install", "--upgrade", "gradio"])
 subprocess.check_call(["pip", "install", "-q", "openai"])
 subprocess.check_call(["pip", "install", "-q", "gradio", "transformers", "python-dotenv"])
 import gradio as gr