[fix][admin] Verify is policies read only before revoke permissions on topic

[dao-jun]

Fixes #23715

Motivation

see #23715

Modifications

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

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
• doc-not-needed
• doc-complete

[lhotari]

Thanks @dao-jun. Could we add tests to cover this? The lack of tests made it possible that this regression happened in the first place.

[dao-jun]

@lhotari @Technoboy- PTAL

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.37%. Comparing base (bbc6224) to head (4699840).
Report is 794 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #23730      +/-   ##
============================================
+ Coverage     73.57%   74.37%   +0.80%     
- Complexity    32624    34568    +1944     
============================================
  Files          1877     1945      +68     
  Lines        139502   147511    +8009     
  Branches      15299    16280     +981     
============================================
+ Hits         102638   109712    +7074     
- Misses        28908    29327     +419     
- Partials       7956     8472     +516     

Flag	Coverage Δ
inttests	27.40% <0.00%> (+2.82%)	⬆️
systests	24.37% <0.00%> (+0.05%)	⬆️
unittests	73.77% <100.00%> (+0.93%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...pulsar/broker/admin/impl/PersistentTopicsBase.java	69.74% <100.00%> (+4.28%)	⬆️

... and 676 files with indirect coverage changes