ISSUE-18514: [Bug] pulsar-admin namespaces set-retention not work

[sijie]

Original Issue: apache#18514

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Search before asking

• I searched in the issues and found nothing similar.

Version

Master version of Pulsar.

Minimal reproduce step

1. start stanalone Pulsar.
2. use pulsar-admin namespace set-retention then pulsar-admin namespace get-retention:

What did you expect to see?

Retention setting has changed.

What did you see instead?

Retention setting didn't change.

Anything else?

No response

Are you willing to submit a PR?

• I'm willing to submit a PR!