[Backport 2.x] search returns detector type in CAPS fix and integration tests

[opensearch-trigger-bot]

Backport 1770873 from #174

[codecov-commenter]

Codecov Report

Merging #214 (8a5ccee) into 2.x (3b490a1) will increase coverage by 0.01%.
The diff coverage is 42.30%.

@@             Coverage Diff              @@
##                2.x     #214      +/-   ##
============================================
+ Coverage     38.95%   38.97%   +0.01%     
- Complexity      891      892       +1     
============================================
  Files           176      176              
  Lines          6744     6746       +2     
  Branches        823      823              
============================================
+ Hits           2627     2629       +2     
  Misses         3876     3876              
  Partials        241      241              

Impacted Files	Coverage Δ
...rch/securityanalytics/action/IndexRuleRequest.java	0.00% <0.00%> (ø)
...yanalytics/transport/TransportGetAlertsAction.java	0.00% <0.00%> (ø)
...nalytics/transport/TransportGetFindingsAction.java	0.00% <0.00%> (ø)
...yanalytics/transport/TransportIndexRuleAction.java	0.00% <0.00%> (ø)
...alytics/config/monitors/DetectorMonitorConfig.java	53.84% <31.25%> (ø)
...rch/securityanalytics/mapper/MapperTopicStore.java	77.77% <100.00%> (ø)
...g/opensearch/securityanalytics/model/Detector.java	70.58% <100.00%> (ø)
...earch/securityanalytics/model/DetectorTrigger.java	56.14% <100.00%> (+0.51%)	⬆️

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