add duration zerogpu

src/main.py

@@ -256,7 +256,7 @@ def combine_audio(audio_paths, output_path, main_gain, backup_gain, inst_gain, o
     main_vocal_audio.overlay(backup_vocal_audio).overlay(instrumental_audio).export(output_path, format=output_format)
     print(f"[+] Audio combined: {output_path}")
 
-@spaces.GPU
+@spaces.GPU(duration=300)
 def song_cover_pipeline(song_input, voice_model, pitch_change, keep_files,
                         is_webui=0, main_gain=0, backup_gain=0, inst_gain=0, index_rate=0.5, filter_radius=3,
                         rms_mix_rate=0.25, f0_method='rmvpe', crepe_hop_length=128, protect=0.33, pitch_change_all=0,