Update app.py

app.py

@@ -22,7 +22,7 @@ uvr_models = {
         'MDX23C-8KFFT-InstVoc_HQ.ckpt': 'MDX23C-8KFFT-InstVoc_HQ.ckpt',
         'BS-Roformer-Viperx-1053.ckpt': 'model_bs_roformer_ep_937_sdr_10.5309.ckpt',
         'Mel-Roformer-Viperx-1143.ckpt': 'model_mel_band_roformer_ep_3005_sdr_11.4360.ckpt',
-        'Kim_Vocal_2.onnx: 'Kim_Vocal_2.onnx',
+        'Kim_Vocal_2.onnx': 'Kim_Vocal_2.onnx',
         'UVR-De-Echo-Aggressive.pth': 'UVR-De-Echo-Aggressive.pth',
 }