Update app.py

added a face model for testing

app.py

@@ -285,7 +285,7 @@ with gr.Blocks(title="Generative Inference Demo", css="""
             with gr.Group(visible=False) as params_section:
                 with gr.Row():
                     model_choice = gr.Dropdown(
-                        choices=["resnet50_robust", "standard_resnet50"], # "resnet50_robust_face" - hidden for deployment
+                        choices=["resnet50_robust", "standard_resnet50", "resnet50_robust_face"], # "resnet50_robust_face" - hidden for deployment
                         value="resnet50_robust", 
                         label="Model"
                     )