update paraformer online inference recipe

haoneng.lhn

2023-09-21 fa61ffd3ddc45aad7c0649a21e1cc7b71516369b

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beam_size: 10
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.5
lm_weight: 0.7