[Backport 2.x] fix chained findings monitor logic in update detector flow

[opensearch-trigger-bot]

Backport df5f746 from #1019.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 12 lines in your changes are missing coverage. Please review.

Project coverage is 24.75%. Comparing base (b241336) to head (c0df39c).

Files	Patch %	Lines
...lytics/transport/TransportIndexDetectorAction.java	0.00%	10 Missing ⚠️
...ch/securityanalytics/findings/FindingsService.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x    #1020      +/-   ##
============================================
- Coverage     24.76%   24.75%   -0.01%     
- Complexity     1053     1054       +1     
============================================
  Files           280      280              
  Lines         12899    12907       +8     
  Branches       1407     1410       +3     
============================================
+ Hits           3194     3195       +1     
- Misses         9431     9439       +8     
+ Partials        274      273       -1     

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[opensearch-trigger-bot]

The backport to 2.11 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-2.11 2.11
# Navigate to the new working tree
cd .worktrees/backport-2.11
# Create a new branch
git switch --create backport/backport-1020-to-2.11
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 c162a6f300b7cf4afee0513159650da2fdf5bb9b
# Push it to GitHub
git push --set-upstream origin backport/backport-1020-to-2.11
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-2.11

Then, create a pull request where the base branch is 2.11 and the compare/head branch is backport/backport-1020-to-2.11.