[onnx] Fix output shape mismatch issue of max_pool (#106270)
For onnx MaxPool with ceil_mode=1, the sliding windows that starts in the right padded region won't be ignored, which causes different output shape with torch.
Therefore, need to add Pad op before and not to set ceil_mode for MaxPool op like what is done in symbolic_opset9 when convertting torch max_pool to onnx MaxPool.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/106270
Approved by: https://github.com/thiagocrepaldi
