[FLINK-13619] Update FlinkKafkaProducerMigrationOperatorTest to restore from 1.9 savepoint

[yanghua]

What is the purpose of the change

This pull request updates FlinkKafkaProducerMigrationOperatorTest to restore from 1.9 savepoint

Brief change log

• Generated binary files
• Update migration version

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

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, Yarn/Mesos, 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)

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Automated Checks

Last check on commit d56a6ff (Wed Oct 16 08:15:52 UTC 2019)

Warnings:

• No documentation files were touched! Remember to keep the Flink docs up to date!

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Review Progress

• ❓ 1. The [description] looks good.
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• ❓ 3. Needs [attention] from.
• ❓ 4. The change fits into the overall [architecture].
• ❓ 5. Overall code [quality] is good.

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CI report:

• d56a6ff : SUCCESS Build

[yanghua]

cc @tillrohrmann

[tillrohrmann]

Thanks for updating the migration tests @yanghua. LGTM. Merging now.