修改升级协议中的bug，帧长度由大端模式改为小端模式

liurunyu

2024-12-02 cdce015a7143b5e9d0fb003b80b9aa307906c14b

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distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.6/apache-maven-3.9.6-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar