[hotfix] Add flink-connector-hive in README

[caicancai]

What is the purpose of the change

Add flink-connector-hive in README

Brief change log

• Add flink-connector-hive in README

Verifying this change

Please make sure both new and modified tests in this PR follows the conventions defined in our code quality guide: https://flink.apache.org/contributing/code-style-and-quality-common.html#testing

(Please pick either of the following options)

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

(or)

This change is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

(example:)

• Added integration tests for end-to-end deployment with large payloads (100MB)
• Extended integration test for recovery after master (JobManager) failure
• Added test that validates that TaskInfo is transferred only once across recoveries
• Manually verified the change by running a 4 node cluster with 2 JobManagers and 4 TaskManagers, a stateful streaming program, and killing one JobManager and two TaskManagers during the execution, verifying that recovery happens correctly.

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:

• 4147aacae70c6407f625c88ffdf1af0fdab4c4a6 Azure: FAILURE

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[caicancai]

@RocMarshal @1996fanrui Hello, if you have time, can you review this PR? I’m not sure whether this connector needs to be added, thank you.

[snuyanzin]

as mentioned at https://github.com/apache/flink/pull/23787#discussion_r1404858557 first the process of hive connector externalisation should be finished

[caicancai]

as mentioned at #23787 (comment) first the process of hive connector externalisation should be finished

thank your reply