[Backport 2.0] [Backport 2.x] removed recursion from Explain Action to avoid stackoverflow in some …

[opensearch-trigger-bot]

Backport b63320b from #421

[codecov-commenter]

Codecov Report

Merging #425 (07f15e8) into 2.0 (734fbed) will increase coverage by 0.26%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##                2.0     #425      +/-   ##
============================================
+ Coverage     75.14%   75.41%   +0.26%     
- Complexity     2139     2157      +18     
============================================
  Files           263      263              
  Lines         12413    12398      -15     
  Branches       1974     1971       -3     
============================================
+ Hits           9328     9350      +22     
+ Misses         2000     1963      -37     
  Partials       1085     1085              

Impacted Files	Coverage Δ
...transport/action/explain/TransportExplainAction.kt	72.63% <0.00%> (+5.31%)	⬆️
...nt/indexstatemanagement/model/destination/Chime.kt	55.55% <0.00%> (-22.23%)	⬇️
...nt/indexstatemanagement/model/destination/Slack.kt	55.55% <0.00%> (-22.23%)	⬇️
.../action/explain/TransportExplainTransformAction.kt	70.78% <0.00%> (-2.25%)	⬇️
...management/indexstatemanagement/MetadataService.kt	62.68% <0.00%> (-2.24%)	⬇️
...gement/indexstatemanagement/action/ShrinkAction.kt	70.58% <0.00%> (-1.48%)	⬇️
...nt/indexstatemanagement/ManagedIndexCoordinator.kt	68.71% <0.00%> (-1.17%)	⬇️
...exmanagement/opensearchapi/OpenSearchExtensions.kt	84.69% <0.00%> (-1.03%)	⬇️
.../opensearch/indexmanagement/rollup/model/Rollup.kt	85.58% <0.00%> (-0.47%)	⬇️
...ndexstatemanagement/IndexStateManagementHistory.kt	80.00% <0.00%> (+1.37%)	⬆️
... and 6 more

Help us with your feedback. Take ten seconds to tell us how you rate us.