refactored DeleteMonitor Action to be synchronious

[petardz]

Signed-off-by: Petar Dzepina [email protected]

Issue #, if available: #586

Description of changes:
Refactored DeleteMonitor Action to be synchronious

CheckList:
[ ] Commits are signed per the DCO using --signoff

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[codecov-commenter]

Codecov Report

Merging #628 (d73965f) into main (0740d9b) will decrease coverage by 0.08%.
The diff coverage is 72.09%.

@@             Coverage Diff              @@
##               main     #628      +/-   ##
============================================
- Coverage     76.38%   76.29%   -0.09%     
  Complexity      116      116              
============================================
  Files           124      124              
  Lines          6450     6443       -7     
  Branches        941      942       +1     
============================================
- Hits           4927     4916      -11     
- Misses         1038     1044       +6     
+ Partials        485      483       -2     

Impacted Files	Coverage Δ
...alerting/transport/TransportDeleteMonitorAction.kt	74.62% <72.09%> (+9.76%)	⬆️
...ing/model/destination/DestinationContextFactory.kt	75.00% <0.00%> (-3.58%)	⬇️
.../alerting/transport/TransportIndexMonitorAction.kt	70.34% <0.00%> (-3.11%)	⬇️
.../kotlin/org/opensearch/alerting/util/IndexUtils.kt	70.83% <0.00%> (-2.09%)	⬇️
...destinationmigration/DestinationConversionUtils.kt	68.88% <0.00%> (-1.12%)	⬇️
...ain/kotlin/org/opensearch/alerting/AlertService.kt	78.50% <0.00%> (-0.47%)	⬇️

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[eirsep]

Can you plz update the transport layer integ test to verify deletion of queries from query index?

[opensearch-trigger-bot]

The backport to 2.x 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.x 2.x
# Navigate to the new working tree
cd .worktrees/backport-2.x
# Create a new branch
git switch --create backport/backport-628-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 c6c12db71def52e4c38e0267e8e2141695fdf25e
# Push it to GitHub
git push --set-upstream origin backport/backport-628-to-2.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-628-to-2.x.