[Backport 2.10] Auto expand replicas

[opensearch-trigger-bot]

Backport 1003936 from #539

[codecov]

Codecov Report

Merging #554 (f4dfe0e) into 2.10 (75883d9) will decrease coverage by 0.01%.
Report is 1 commits behind head on 2.10.
The diff coverage is 0.00%.

❗ Current head f4dfe0e differs from pull request most recent head 6c58b77. Consider uploading reports for the commit 6c58b77 to get more accurate results

@@             Coverage Diff              @@
##               2.10     #554      +/-   ##
============================================
- Coverage     25.14%   25.14%   -0.01%     
  Complexity      940      940              
============================================
  Files           255      255              
  Lines         11062    11066       +4     
  Branches       1231     1231              
============================================
  Hits           2782     2782              
- Misses         8028     8032       +4     
  Partials        252      252              

Files Changed	Coverage Δ
...opensearch/securityanalytics/util/RuleIndices.java	0.00% <0.00%> (ø)

📢 Have feedback on the report? Share it here.