fix demo in egs_modelscope vad

lzr265946

2023-02-17 861f2f26056aea26da1a9eedc2f0288e07254ec2

fix demo in egs_modelscope vad

 egs_modelscope/vad/speech_fsmn_vad_zh-cn-8k-common/infer.py

@@ -7,7 +7,7 @@
    inference_pipline = pipeline(
        task=Tasks.voice_activity_detection,
        model="damo/speech_fsmn_vad_zh-cn-8k-common",
        model_revision='v1.1.1',
        model_revision=None,
        output_dir='./output_dir',
        batch_size=1,
    )