[Backport 2.x] 483: Updated detekt plugin and snakeyaml dependency. Updated a code t…

[opensearch-trigger-bot]

Backport ed6ed10 from #485

[codecov-commenter]

Codecov Report

Merging #486 (1dc2f11) into 2.x (729ca33) will decrease coverage by 0.03%.
The diff coverage is 20.83%.

@@             Coverage Diff              @@
##                2.x     #486      +/-   ##
============================================
- Coverage     75.98%   75.95%   -0.04%     
+ Complexity     2478     2474       -4     
============================================
  Files           314      314              
  Lines         14454    14454              
  Branches       2235     2235              
============================================
- Hits          10983    10978       -5     
- Misses         2225     2228       +3     
- Partials       1246     1248       +2     

Impacted Files	Coverage Δ
...pensearch/indexmanagement/IndexManagementPlugin.kt	89.88% <0.00%> (ø)
...dexmanagement/common/model/notification/Channel.kt	48.38% <0.00%> (ø)
...nt/indexstatemanagement/ManagedIndexCoordinator.kt	68.71% <ø> (-0.30%)	⬇️
...ndexstatemanagement/migration/MigrationServices.kt	78.26% <ø> (ø)
...nt/indexstatemanagement/model/destination/Chime.kt	77.77% <0.00%> (ø)
...statemanagement/model/destination/CustomWebhook.kt	95.71% <0.00%> (ø)
...nt/indexstatemanagement/model/destination/Slack.kt	55.55% <0.00%> (ø)
...opensearch/indexmanagement/rollup/RollupIndexer.kt	56.06% <0.00%> (ø)
.../opensearch/indexmanagement/rollup/RollupRunner.kt	59.29% <ø> (ø)
...nsearch/indexmanagement/rollup/util/RollupUtils.kt	80.83% <ø> (ø)
... and 18 more

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