[fix][client] Match logical topic when removing unacked messages

[Dream95]

Motivation

When a multi-topic consumer unsubscribes from a topic, it removes unacked messages that belong to the unsubscribed topic.
The previous matching logic used substring matching on TopicMessageId#getOwnerTopic(). This could incorrectly remove messages from topics with similar prefixes, such as matching my-topic-v2 when unsubscribing my-topic.

Modifications

• Normalize both the message owner topic and the target topic to their partitioned topic name before comparing them.
• Remove unacked messages for all partitions of the unsubscribed logical topic.
• Add test coverage to verify that similarly prefixed topics are not removed by mistake.

Verifying this change

• Make sure that the change passes the CI checks.

This change added tests and can be verified as follows:
./gradlew :pulsar-client-original:test --tests org.apache.pulsar.client.impl.UnAckedTopicMessageRedeliveryTrackerTest

Does this pull request potentially affect one of the following parts:

If the box was checked, please highlight the changes

• Dependencies (add or upgrade a dependency)
• The public API
• The schema
• The default values of configurations
• The threading model
• The binary protocol
• The REST endpoints
• The admin CLI options
• The metrics
• Anything that affects deployment

[lhotari]

LGTM