[FLINK-21411][rocksdb] Update FRocksDB to bump bzip2 dependency version

[Myasuka]

What is the purpose of the change

Try best to ensure all operators and state manager handle the checkpoint complete notification

Brief change log

Change the logic to handle checkpoint complete notification.

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): 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? not applicable

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Automated Checks

Last check on commit b1177cd (Thu Sep 23 18:09:13 UTC 2021)

Warnings:

• 1 pom.xml files were touched: Check for build and licensing issues.
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• ❓ 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:

• de8511b Azure: FAILURE

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[tillrohrmann]

Thanks for creating this PR @Myasuka. LGTM. Merging once Azure gives green light.

[tillrohrmann]

The failed e2e test looks unrelated.