[Backport 3.3] Fix the check for expected value of number of arenas for flight tranport

[rishabhmaurya]

Description

Backport #19820

Related Issues

Resolves #[Issue number to be closed when this PR is merged]

Check List

• Functionality includes testing.
• API changes companion pull request created, if applicable.
• Public documentation issue/PR created, if applicable.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[github-actions]

❕ Gradle check result for 527606b: UNSTABLE

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

❌ Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.99%. Comparing base (0840659) to head (527606b).
⚠️ Report is 3 commits behind head on 3.3.

Files with missing lines	Patch %	Lines
...pensearch/arrow/flight/bootstrap/ServerConfig.java	33.33%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                3.3   #19821      +/-   ##
============================================
- Coverage     73.09%   72.99%   -0.10%     
+ Complexity    70558    70491      -67     
============================================
  Files          5717     5717              
  Lines        323059   323061       +2     
  Branches      46792    46793       +1     
============================================
- Hits         236124   235819     -305     
- Misses        67915    68210     +295     
- Partials      19020    19032      +12     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.