CoreML inference fix `list()` -> `sorted()` (#6496)

models/common.py

@@ -427,7 +427,7 @@ class DetectMultiBackend(nn.Module):
                 conf, cls = y['confidence'].max(1), y['confidence'].argmax(1).astype(np.float)
                 y = np.concatenate((box, conf.reshape(-1, 1), cls.reshape(-1, 1)), 1)
             else:
-                y = y[list(y)[-1]]  # last output
+                y = y[sorted(y)[-1]]  # last output
         else:  # TensorFlow (SavedModel, GraphDef, Lite, Edge TPU)
             im = im.permute(0, 2, 3, 1).cpu().numpy()  # torch BCHW to numpy BHWC shape(1,320,192,3)
             if self.saved_model:  # SavedModel