Squashed commit of the following:

commit c9b487afb3528ad836ae3f6d5410ff68a690ec2a
Author: Spedon Wen <[email protected]>
Date: Tue Oct 15 03:43:06 2024 +0800

feat: update model

- found some performance degradation in old version, will investigate

decoder_model_merged_quantized.onnx

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encoder_model_quantized.onnx

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