[Backport 2.x] Fixes detectorType incompatibility with detector rules

[opensearch-trigger-bot]

Backport b88f3db from #524

[codecov]

Codecov Report

Merging #530 (c645d35) into 2.x (745874d) will not change coverage.
Report is 1 commits behind head on 2.x.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##                2.x     #530   +/-   ##
=========================================
  Coverage     25.84%   25.84%           
  Complexity      940      940           
=========================================
  Files           252      252           
  Lines         10737    10737           
  Branches       1197     1197           
=========================================
  Hits           2775     2775           
  Misses         7715     7715           
  Partials        247      247           

Files Changed	Coverage Δ
...rch/securityanalytics/SecurityAnalyticsPlugin.java	2.50% <ø> (ø)
...rch/securityanalytics/action/AckAlertsRequest.java	75.00% <ø> (ø)
...ch/securityanalytics/action/AckAlertsResponse.java	77.27% <ø> (ø)
.../opensearch/securityanalytics/action/AlertDto.java	50.45% <ø> (ø)
...rityanalytics/action/CorrelatedFindingRequest.java	0.00% <ø> (ø)
...ityanalytics/action/CorrelatedFindingResponse.java	0.00% <ø> (ø)
...tyanalytics/action/CreateIndexMappingsRequest.java	46.93% <0.00%> (ø)
...analytics/action/DeleteCorrelationRuleRequest.java	0.00% <ø> (ø)
...tyanalytics/action/DeleteCustomLogTypeRequest.java	0.00% <ø> (ø)
...yanalytics/action/DeleteCustomLogTypeResponse.java	0.00% <ø> (ø)
... and 111 more