[Backport 2.7] Manual Backport of Dynamic tenancy configurations

[stephen-crawford]

Manually backports #2607

Check List

• New functionality includes testing
• New functionality has been documented
• Commits are signed per the DCO using --signoff

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-commenter]

Codecov Report

Attention: Patch coverage is 76.13636% with 42 lines in your changes missing coverage. Please review.

Project coverage is 61.30%. Comparing base (f7deb94) to head (042690e).
Report is 3 commits behind head on 2.7.

Files with missing lines	Patch %	Lines
.../action/tenancy/TenancyConfigRetrieveResponse.java	54.16%	11 Missing ⚠️
...ity/action/tenancy/TenancyConfigUpdateRequest.java	64.00%	8 Missing and 1 partial ⚠️
...on/tenancy/TenancyConfigUpdateTransportAction.java	82.97%	7 Missing and 1 partial ⚠️
...earch/security/dlic/rest/api/MigrateApiAction.java	0.00%	5 Missing ⚠️
...ensearch/security/action/tenancy/EmptyRequest.java	60.00%	2 Missing ⚠️
...urity/action/tenancy/TenancyConfigRestHandler.java	77.77%	1 Missing and 1 partial ⚠️
...ch/security/securityconf/DynamicConfigModelV6.java	0.00%	2 Missing ⚠️
...arch/security/dlic/rest/api/AbstractApiAction.java	83.33%	1 Missing ⚠️
...earch/security/privileges/PrivilegesEvaluator.java	66.66%	0 Missing and 1 partial ⚠️
...search/security/securityconf/impl/v7/ConfigV7.java	80.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                2.7    #2693      +/-   ##
============================================
+ Coverage     61.19%   61.30%   +0.11%     
- Complexity     3260     3308      +48     
============================================
  Files           259      268       +9     
  Lines         18183    18336     +153     
  Branches       3234     3242       +8     
============================================
+ Hits          11127    11241     +114     
- Misses         5488     5522      +34     
- Partials       1568     1573       +5     

Files with missing lines	Coverage Δ
.../opensearch/security/OpenSearchSecurityPlugin.java	80.20% <100.00%> (+0.11%)	⬆️
...y/action/tenancy/TenancyConfigRetrieveActions.java	100.00% <100.00%> (ø)
.../tenancy/TenancyConfigRetrieveTransportAction.java	100.00% <100.00%> (ø)
...rity/action/tenancy/TenancyConfigUpdateAction.java	100.00% <100.00%> (ø)
...search/security/action/tenancy/TenancyConfigs.java	100.00% <100.00%> (ø)
...urity/configuration/PrivilegesInterceptorImpl.java	53.75% <100.00%> (+2.46%)	⬆️
...earch/security/dlic/rest/api/AccountApiAction.java	82.35% <100.00%> (ø)
...rch/security/dlic/rest/api/AllowlistApiAction.java	74.19% <100.00%> (ø)
...security/dlic/rest/api/InternalUsersApiAction.java	83.78% <100.00%> (ø)
...rity/dlic/rest/api/PatchableResourceApiAction.java	85.00% <100.00%> (ø)
... and 16 more

... and 5 files with indirect coverage changes

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