[cleanup] Convert 30 test classes to SharedPulsarBaseTest

[merlimat]

Summary

• Convert 30 test classes from ProducerConsumerBase to SharedPulsarBaseTest
• Fix flaky tests caused by dedup cursor blocking ledger trimming (disable dedup on namespace for ledger trim tests)
• Fix AnalyzeBacklogSubscriptionTest config leak (subscriptionBacklogScanMaxEntries not reset between methods)
• Fix CompactionConcurrencyTest race condition assertion (in-memory metadata too fast for concurrent delete race)
• Fix SimpleProducerConsumerDisallowAutoCreateTopicTest error message assertion (check exception type instead of message text)

Tests not converted (incompatible with shared cluster):

• ConnectionHandlerTest — grabCnx() doesn't trigger callback on shared client
• PersistentTopicProtectedMethodsTest — backlog quota check timing incompatible
• TopicsConsumerImplTest — partition auto-update 60s interval too long for assertions
• OrphanPersistentTopicTest — requires Mockito spying on broker service
• ConsumerCreationTest — AutoTopicCreationOverride NPE from config leak
• ProducerCreationTest — hardcoded public/default namespace throughout
• EnableReplicatedSubscriptionsIsDisabledTest — requires enableReplicatedSubscriptions=false
• SubscriptionPauseOnAckStatPersistTest — manual managed ledger open needs more bookies

Documentation

• doc-not-needed

Matching PR in forked repository

PR in forked repository:

---

Tip

Add the label ready-to-test to trigger CI

[github-actions]

@merlimat Please add the following content to your PR description and select a checkbox:

- [ ] `doc` <!-- Your PR contains doc changes -->
- [ ] `doc-required` <!-- Your PR changes impact docs and you will update later -->
- [ ] `doc-not-needed` <!-- Your PR changes do not impact docs -->
- [ ] `doc-complete` <!-- Docs have been already added -->

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.70%. Comparing base (a27988b) to head (2ede9cf).
⚠️ Report is 4 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #25381      +/-   ##
============================================
- Coverage     72.81%   72.70%   -0.11%     
- Complexity    33791    33879      +88     
============================================
  Files          1954     1954              
  Lines        154793   154857      +64     
  Branches      17731    17740       +9     
============================================
- Hits         112716   112596     -120     
- Misses        33066    33213     +147     
- Partials       9011     9048      +37     

Flag	Coverage Δ
inttests	25.81% <ø> (-0.10%)	⬇️
systests	22.49% <ø> (-0.09%)	⬇️
unittests	73.67% <ø> (-0.12%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.
see 82 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.