[Backport 2.x] Refactor Docker Compose version detection to predictably pick v2 only if v1 is not available

[opensearch-trigger-bot]

Backport 98dbc4a from #16793.

[github-actions]

❕ Gradle check result for 4c3f89d: UNSTABLE

• TEST FAILURES:

      1 org.opensearch.search.SearchTimeoutIT.testSimpleTimeout {p0={"search.concurrent_segment_search.enabled":"false"}}
      1 org.opensearch.backwards.MixedClusterClientYamlTestSuiteIT.test {p0=search.aggregation/20_terms/string profiler via global ordinals}

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

Attention: Patch coverage is 0% with 20 lines in your changes missing coverage. Please review.

Project coverage is 71.85%. Comparing base (3eecea4) to head (4c3f89d).
Report is 1 commits behind head on 2.x.

Files with missing lines	Patch %	Lines
...opensearch/gradle/docker/DockerSupportService.java	0.00%	17 Missing ⚠️
...search/gradle/testfixtures/TestFixturesPlugin.java	0.00%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x   #16800      +/-   ##
============================================
+ Coverage     71.74%   71.85%   +0.11%     
- Complexity    65420    65494      +74     
============================================
  Files          5314     5314              
  Lines        305364   305367       +3     
  Branches      44501    44502       +1     
============================================
+ Hits         219077   219424     +347     
+ Misses        67952    67643     -309     
+ Partials      18335    18300      -35     

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