fix chunk size select bug

hnluo

2023-10-25 f3330efc0abc868dd5680832025bcf11e252f280

 funasr/runtime/python/websocket/funasr_wss_client.py

@@ -27,7 +27,7 @@
                    help="grpc server port")
parser.add_argument("--chunk_size",
                    type=str,
                    default="5, 10, 5",
                    default="0, 10, 5",
                    help="chunk")
parser.add_argument("--encoder_chunk_look_back",
                    type=int,