fix func of FfmpegLoad for unexpected file format

雾聪

2023-10-12 00e038e22009a2014ba52f315045d875e96c93a7

 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)