[Backport 2.9] Backport #1302, #1355, #1432, #1435, #1445, #1403, #1430, #1441 to 2.9

[eirsep]

Backports following PRs to 2.9

• 1302

• 1355

• 1432

• 1435

• 1445

• 1403

• 1430

• 1441

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 78.65330% with 149 lines in your changes are missing coverage. Please review.

Project coverage is 68.64%. Comparing base (0269dd1) to head (e74b166). Report is 2 commits behind head on 2.9.

Files	Patch %	Lines
.../opensearch/alerting/DocumentLevelMonitorRunner.kt	82.89%	31 Missing and 21 partials :warning:
...n/org/opensearch/alerting/core/lock/LockService.kt	58.73%	45 Missing and 7 partials :warning:
.../org/opensearch/alerting/MonitorMetadataService.kt	52.63%	9 Missing and 9 partials :warning:
...opensearch/alerting/util/DocLevelMonitorQueries.kt	77.14%	5 Missing and 3 partials :warning:
...in/org/opensearch/alerting/MonitorRunnerService.kt	88.00%	4 Missing and 2 partials :warning:
.../kotlin/org/opensearch/alerting/util/IndexUtils.kt	70.58%	1 Missing and 4 partials :warning:
...lerting/transport/TransportDeleteWorkflowAction.kt	60.00%	2 Missing :warning:
.../alerting/transport/TransportIndexMonitorAction.kt	66.66%	0 Missing and 2 partials :warning:
...lin/org/opensearch/alerting/core/lock/LockModel.kt	96.55%	0 Missing and 2 partials :warning:
...opensearch/alerting/model/IndexExecutionContext.kt	88.88%	1 Missing :warning:
... and 1 more

Additional details and impacted files

```diff @@ Coverage Diff @@ ## 2.9 #1469 +/- ## ============================================ + Coverage 68.35% 68.64% +0.29% - Complexity 120 143 +23 ============================================ Files 160 162 +2 Lines 10740 11268 +528 Branches 1628 1697 +69 ============================================ + Hits 7341 7735 +394 - Misses 2680 2774 +94 - Partials 719 759 +40 ```

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[jowg-amazon]

Are we backporting #1139 to 2.9?