[FEATURE] Flink使用JSONB协议优化序列化和反序列化性能

fastjson2 的jsonb协议可以支持一下flink程序的默认的序列化与反序列，这样对于大流量场景flink任务的性能会有很大的提升

Start by locating any Flink integration and the default serialization and deserialization entry points in this Java repository, then investigate how the JSONB protocol could be applied to high-volume Flink jobs. Done means the default Flink serialization path supports JSONB and its performance impact is demonstrated.

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