Fix policies tests with Pulsar 5 bundles

[Technoboy-]

Motivation

For the flaky test :

https://github.com/streamnative/pulsarctl/actions/runs/35339518127/job/105581974622?pr=2154

Modifications

Describe the modifications you've done.

Verifying this change

• Make sure that the change passes the CI checks.

(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 (10MB)
• Extended integration test for recovery after broker failure

Documentation

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Need to update docs?

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• no-need-doc

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• doc

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[github-actions]

@Technoboy-:Thanks for your contribution. For this PR, do we need to update docs?
(The PR template contains info about doc, which helps others know more about the changes. Can you provide doc-related info in this and future PR descriptions? Thanks)