[fix][test] Fix more ByteBuf resource leaks in tests, part 4

[lhotari]

Motivation

Fixing Netty ByteBuf leaks in test code is needed for executing the plan explained in Enhancing Pulsar CI with Netty leak detection and reporting. The Pulsar CI Netty leak detection and reporting solution was added in #24272.

While working on this PR, I found a real production code issue. That is fixed in a separate PR, #24331.

Modifications

• Fix ByteBuf leaks in these tests
  • ManagedLedgerTest
  • TripleLongPriorityQueueTest
  • BlobStoreManagedLedgerOffloaderStreamingTest
  • BlobStoreManagedLedgerOffloaderTest

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.25%. Comparing base (bbc6224) to head (2efe986).
Report is 1113 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #24332      +/-   ##
============================================
+ Coverage     73.57%   74.25%   +0.67%     
+ Complexity    32624    32203     -421     
============================================
  Files          1877     1866      -11     
  Lines        139502   145124    +5622     
  Branches      15299    16593    +1294     
============================================
+ Hits         102638   107756    +5118     
+ Misses        28908    28825      -83     
- Partials       7956     8543     +587     

Flag	Coverage Δ
inttests	26.66% <ø> (+2.08%)	⬆️
systests	23.26% <ø> (-1.06%)	⬇️
unittests	73.74% <ø> (+0.90%)	⬆️

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

see 1084 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.