[FLINK-32157] Replaces LeaderConnectionInfo with LeaderInformation

[archzi]

What is the purpose of the change

This pull request replaces LeaderConnectionInfo with LeaderInformation

Brief change log

This change replaces all references to LeaderConnectionInfo with LeaderInformation.

Verifying this change

This change is already covered by existing tests, such as

• EmbeddedHaServicesTest
• LeaderChangeClusterComponentsTest
• ZooKeeperLeaderElectionDriverTest

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 / docs / JavaDocs / not documented)

[flinkbot]

CI report:

• 930863b Azure: SUCCESS

Bot commands

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

[XComp]

Thanks for the change. LGTM 👍

[XComp]

(sorry for not approving the PR before merging 😇 )