fix empty timestamp list inference

shixian.shi

2023-09-06 13c2af5de44d2ac4cb09677ab4fb07f37ade2b98

 funasr/main_funcs/pack_funcs.py

@@ -191,12 +191,12 @@

    Examples:
        tarfile:
           model.pth
           model.pb
           some1.file
           some2.file

        >>> unpack("tarfile", "out")
        {'asr_model_file': 'out/model.pth'}
        {'asr_model_file': 'out/model.pb'}
    """
    input_archive = Path(input_archive)
    outpath = Path(outpath)