Update app for Gradio 6 API changes

app.py

@@ -233,7 +233,7 @@ def diarize(
 
 
 def build_demo() -> gr.Blocks:
-    with gr.Blocks(theme=gr.themes.Soft(), title="Pyannote Speaker Diarization") as demo:
+    with gr.Blocks(title="Pyannote Speaker Diarization") as demo:
         gr.Markdown(
             """
             # Speaker diarization with pyannote Community-1
@@ -293,7 +293,7 @@ def build_demo() -> gr.Blocks:
                 turns_output = gr.Textbox(
                     label="Speaker turns",
                     lines=14,
-                    show_copy_button=True,
+                    buttons=["copy"],
                 )
                 files_output = gr.File(label="Download outputs", file_count="multiple")
 
@@ -323,4 +323,4 @@ demo = build_demo()
 demo.queue(default_concurrency_limit=1)
 
 if __name__ == "__main__":
-    demo.launch()
+    demo.launch(theme=gr.themes.Soft())