[FLINK-35262] Bridge between AsyncKeyedStateBackend and AsyncExecutionController

[masteryhx]

What is the purpose of the change

Bridge between AsyncKeyedStateBackend and AsyncExecutionController, which make aec usable with StateBackend

Brief change log

• Bridge between AsyncKeyedStateBackend and AsyncExecutionController
• Support AsyncKeyedStateBackend for ForStKeyedStateBackend

Verifying this change

This change added tests and can be verified as follows:

• Introduce method of building Async State Backend in StateBackendTestUtils
• Modify AsyncExecutionControllerTest, AbstractAsyncStateStreamOperatorTest, AbstractAsyncStateStreamOperatorV2Test
• Add testAsyncValueStateInstantiation in StreamingRuntimeContextTest

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:

• 5c9efde Azure: SUCCESS

Bot commands

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• @flinkbot run azure re-run the last Azure build

[fredia]

@masteryhx Thanks for the PR, I left some comments, please take a look.

[Zakelly]

Thanks for the PR! I left some comments

[Zakelly]

Thanks for the update, overall LGTM.