[Backport 2.x] Fix flaky ResourceAwareTasksTests.testBasicTaskResourceTracking test

[opensearch-trigger-bot]

Backport b2a7348 from #8993.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.search.SearchWeightedRoutingIT.testStrictWeightedRoutingWithCustomString

• URL: https://build.ci.opensearch.org/job/gradle-check/21535/
• CommitID: a34b7db
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[codecov]

Codecov Report

Merging #9014 (a34b7db) into 2.x (ffb871c) will decrease coverage by 0.24%.
Report is 1 commits behind head on 2.x.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##                2.x    #9014      +/-   ##
============================================
- Coverage     70.95%   70.72%   -0.24%     
+ Complexity    57434    57350      -84     
============================================
  Files          4747     4747              
  Lines        271199   271196       -3     
  Branches      40003    40003              
============================================
- Hits         192424   191796     -628     
- Misses        62292    62890     +598     
- Partials      16483    16510      +27     

Files Changed	Coverage Δ
...n/java/org/opensearch/common/settings/Setting.java	85.87% <100.00%> (ø)
...java/org/opensearch/common/unit/ByteSizeValue.java	99.08% <100.00%> (+0.86%)	⬆️

... and 461 files with indirect coverage changes