Adds resource types to DocRequests

[DarshitChanpura]

Description

Security plugin is adding a list setting to allow individually specify which resources should be marked as protected after onboarding. This PR supports onboarding of AD to that list setting.
opensearch-project/security#5671

Check List

• New functionality includes testing.
• New functionality has been documented.
• API changes companion pull request created.
• Commits are signed per the DCO using --signoff.
• Public documentation issue/PR created.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[codecov]

Codecov Report

❌ Patch coverage is 7.69231% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.40%. Comparing base (b176abe) to head (221e184).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...nsearch/timeseries/transport/GetConfigRequest.java	0.00%	3 Missing ⚠️
...rg/opensearch/timeseries/transport/JobRequest.java	0.00%	3 Missing ⚠️
...arch/timeseries/transport/DeleteConfigRequest.java	33.33%	1 Missing and 1 partial ⚠️
...arch/ad/transport/IndexAnomalyDetectorRequest.java	0.00%	1 Missing ⚠️
...ch/ad/transport/PreviewAnomalyDetectorRequest.java	0.00%	1 Missing ⚠️
...rch/forecast/transport/IndexForecasterRequest.java	0.00%	1 Missing ⚠️
...imeseries/transport/SuggestConfigParamRequest.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1566      +/-   ##
============================================
- Coverage     81.47%   81.40%   -0.08%     
+ Complexity     6136     6132       -4     
============================================
  Files           542      542              
  Lines         24885    24898      +13     
  Branches       2540     2540              
============================================
- Hits          20275    20268       -7     
- Misses         3342     3364      +22     
+ Partials       1268     1266       -2     

Flag	Coverage Δ
plugin	81.40% <7.69%> (-0.08%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...arch/ad/transport/IndexAnomalyDetectorRequest.java	94.44% <0.00%> (-1.79%)	⬇️
...ch/ad/transport/PreviewAnomalyDetectorRequest.java	88.46% <0.00%> (-3.54%)	⬇️
...rch/forecast/transport/IndexForecasterRequest.java	46.29% <0.00%> (-0.88%)	⬇️
...imeseries/transport/SuggestConfigParamRequest.java	87.50% <0.00%> (-2.83%)	⬇️
...arch/timeseries/transport/DeleteConfigRequest.java	81.81% <33.33%> (-7.66%)	⬇️
...nsearch/timeseries/transport/GetConfigRequest.java	77.96% <0.00%> (-4.18%)	⬇️
...rg/opensearch/timeseries/transport/JobRequest.java	86.48% <0.00%> (-7.64%)	⬇️

... and 17 files with indirect coverage changes

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