Exclude IndexAnomalyDetectorResponse from Jacoco to unblock build

[yizheliu-amazon]

Issue #, if available:

Description of changes:
Exclude IndexAnomalyDetectorResponse from Jacoco to unblock build

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[codecov]

Codecov Report

Merging #292 into master will decrease coverage by 0.34%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #292      +/-   ##
============================================
- Coverage     71.31%   70.96%   -0.35%     
+ Complexity     1870     1865       -5     
============================================
  Files           195      195              
  Lines          9018     9024       +6     
  Branches        764      764              
============================================
- Hits           6431     6404      -27     
- Misses         2221     2254      +33     
  Partials        366      366              

Flag	Coverage Δ	Complexity Δ
#plugin	70.24% <ø> (-0.38%)	1865.00 <ø> (-5.00)

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Impacted Files	Coverage Δ	Complexity Δ
...rch/ad/transport/IndexAnomalyDetectorResponse.java	0.00% <0.00%> (-75.00%)	0.00% <0.00%> (-4.00%)
...ransport/DeleteAnomalyDetectorTransportAction.java	53.40% <0.00%> (-4.55%)	15.00% <0.00%> (-1.00%)
...port/SearchAnomalyDetectorInfoTransportAction.java	59.09% <0.00%> (-4.55%)	4.00% <0.00%> (ø%)
...ransport/SearchAnomalyDetectorTransportAction.java	34.09% <0.00%> (-1.63%)	4.00% <0.00%> (ø%)
...est/handler/IndexAnomalyDetectorActionHandler.java	48.77% <0.00%> (ø)	32.00% <0.00%> (ø%)