v0 ByteBuf should not decode by super class

[Bughue]

• I have searched the issues of this repository and believe that this is not a duplicate.

Ⅰ. Issue Description

v0 ByteBuf should not be decoded by super class, it will lead to a IllegalReferenceCountException

Ⅱ. Describe what happened

If there is an exception, please attach the exception trace:

io.netty.util.IllegalReferenceCountException: refCnt: 0, decrement: 1
	at io.netty.util.internal.ReferenceCountUpdater.toLiveRealRefCnt(ReferenceCountUpdater.java:83)
	at io.netty.util.internal.ReferenceCountUpdater.release(ReferenceCountUpdater.java:148)

Ⅲ. Describe what you expected to happen

Ⅳ. How to reproduce it (as minimally and precisely as possible)

Minimal yet complete reproducer code (or URL to code):

Ⅴ. Anything else we need to know?

Ⅵ. Environment:

• JDK version(e.g. java -version):
• Seata client/server version:
• Database version:
• OS(e.g. uname -a):
• Others: