feat(aws): CleanupAlarmsAgent with an optional user-defined name pattern (backport #6317) #6319
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Users might defined a custom name for the scaling policies and alarms names that dont match the strict namePattern of the AlarmsCleanUp agent.
Especially for custom alarms when a scaling policy is deleted the alarms are not cascade deleted leading to stale cache in the cats_v1_alarms table.
This PR allows the user to define their own AlarmsNamePattern for the AlarmsCleanupAgent
This is an automatic backport of pull request #6317 done by Mergify.