[FLINK-35406] Use inner serializer when casting RAW type to BINARY or…

[docete]

… STRING in cast rules

What is the purpose of the change

This pull request fix the wrong behaviour in casting RAW to BINARY or STRING. The generated code in RawToStringCastRule and RawToBinaryCastRule use BinaryRawValueData::toBytes and BinaryRawValueData::toObject to convert RawValueData(to java object or byte array), which should use inner serializer instead of RawValueDataSerializer.

Brief change log

• 049fbd2 fix the wrong behaviour and add tests.

Verifying this change

This change is convered by new test cases in CastFunctionMiscITCase and CastFunctionMiscLegacyITCase

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (yes / no)
• The public API, i.e., is any changed class annotated with @Public(Evolving): (yes / no)
• The serializers: (yes / no / don't know)
• The runtime per-record code paths (performance sensitive): (yes / no / don't know)
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (yes / no / don't know)
• The S3 file system connector: (yes / no / don't know)

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)

[flinkbot]

CI report:

• 049fbd22f58b2c81cf475e594b152b9f778d8a2f UNKNOWN
• df83a220c0c48e6c1de47669ab86796f7013e236 Azure: SUCCESS

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