[fix] [broker] fix subscribe a non-existent cluster/namespace/topic.

[thetumbled]

Motivation

If the topic name is in the format of V1, we can subscribe a topic in non-existent cluster/namespace without any exception.

Modifications

Need to add check for such case.

Verifying this change

• [x] Make sure that the change passes the CI checks.

(Please pick either of the following options)

This change added tests and can be verified as follows:

(example:)

• Added integration tests for end-to-end deployment with large payloads (10MB)
• Extended integration test for recovery after broker failure

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

Documentation

• [ ] doc
• [ ] doc-required
• [x] doc-not-needed
• [ ] doc-complete

Matching PR in forked repository

PR in forked repository: https://github.com/thetumbled/pulsar/pull/51

[thetumbled]

PTAL, thanks. @lhotari @dao-jun @BewareMyPower @poorbarcode