Update bg_input_test.py

bg_input_test.py

@@ -385,7 +385,7 @@ with block:
     with gr.Row():
         with gr.Column():
             with gr.Row():
-                input_fg = gr.Image(source='upload', type="numpy", label="Image", height=480)
+                input_fg = gr.Image(type="numpy", label="Image", height=480)
                 output_bg = gr.Image(type="numpy", label="Preprocessed Foreground", height=480)
             prompt = gr.Textbox(label="Prompt")
             bg_source = gr.Radio(choices=[e.value for e in BGSource],