[Backport 2.x] New algorithm for resolving action groups

[opensearch-trigger-bot]

Backport 20291a9 from #4448.

[codecov]

Codecov Report

Attention: Patch coverage is 82.75862% with 10 lines in your changes missing coverage. Please review.

Project coverage is 65.43%. Comparing base (5984477) to head (34cc23e).

Additional details and impacted files

@@            Coverage Diff             @@
##              2.x    #4472      +/-   ##
==========================================
+ Coverage   65.37%   65.43%   +0.06%     
==========================================
  Files         311      312       +1     
  Lines       21866    21888      +22     
  Branches     3550     3553       +3     
==========================================
+ Hits        14294    14322      +28     
+ Misses       5804     5799       -5     
+ Partials     1768     1767       -1     

Files	Coverage Δ
...ecurityconf/impl/SecurityDynamicConfiguration.java	80.30% <100.00%> (+0.77%)	⬆️
...pensearch/security/securityconf/ConfigModelV7.java	67.30% <80.00%> (-0.21%)	⬇️
...h/security/securityconf/FlattenedActionGroups.java	81.25% <81.25%> (ø)

... and 5 files with indirect coverage changes