[FLINK-34228] Add long UTF serializer/deserializer

[pvary]

What is the purpose of the change

Add a way to serialize UTF8 strings where the resulting byte array is longer than 64k

Brief change log

• Added DataOutputSerializer.writeLongUTF
• Added DataInputDeserializer.readLongUTF

Verifying this change

• Added DataInputOutputSerializerTest.testLongUTFWriteRead unit test

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

• Dependencies (does it add or upgrade a dependency): no
• The public API, i.e., is any changed class annotated with @Public(Evolving): no
• The serializers: no
• The runtime per-record code paths (performance sensitive): no
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
• The S3 file system connector: no

Documentation

• Does this pull request introduce a new feature? no
• If yes, how is the feature documented? no

[flinkbot]

CI report:

• e32ca3d Azure: SUCCESS

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To check the patch in 1.20