[Backport 3.0] Fix flaky simple test it

[opensearch-trigger-bot]

Backport 8948c1f from #18018.

[github-actions]

❌ Gradle check result for a204d82: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

❌ Gradle check result for a204d82: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

✅ Gradle check result for a204d82: SUCCESS

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 72.58%. Comparing base (aa27d70) to head (a204d82).
Report is 9 commits behind head on 3.0.

Files with missing lines	Patch %	Lines
...search/approximate/ApproximatePointRangeQuery.java	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                3.0   #18075      +/-   ##
============================================
+ Coverage     72.51%   72.58%   +0.07%     
- Complexity    67089    67128      +39     
============================================
  Files          5478     5478              
  Lines        310036   310038       +2     
  Branches      45072    45074       +2     
============================================
+ Hits         224809   225031     +222     
+ Misses        66892    66631     -261     
- Partials      18335    18376      +41     

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