[Backport 2.x] Star tree mapping changes

[bharath-techie]

Description

Backport of #14605 - Star tree mapper changes

Have added new constructors for BWC breaking changes - 6b4a4ff

Related Issues

Resolves #14386

Check List

• Functionality includes testing.
• API changes companion pull request created, if applicable.
• Public documentation issue/PR created, if applicable.

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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[github-actions]

✅ Gradle check result for d890e08: SUCCESS

[github-actions]

❕ Gradle check result for 3b4cdcd: UNSTABLE

Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[github-actions]

✅ Gradle check result for 6b4a4ff: SUCCESS

[codecov]

Codecov Report

Attention: Patch coverage is 74.71042% with 131 lines in your changes missing coverage. Please review.

Project coverage is 71.57%. Comparing base (3971a25) to head (e7a3396).
Report is 2 commits behind head on 2.x.

Files	Patch %	Lines
...va/org/opensearch/index/mapper/StarTreeMapper.java	81.81%	20 Missing and 8 partials ⚠️
...java/org/opensearch/index/mapper/ObjectMapper.java	56.60%	14 Missing and 9 partials ⚠️
...siteindex/datacube/startree/StarTreeValidator.java	65.78%	9 Missing and 4 partials ⚠️
...ndex/compositeindex/datacube/DimensionFactory.java	58.62%	8 Missing and 4 partials ⚠️
.../datacube/startree/StarTreeFieldConfiguration.java	72.72%	6 Missing and 3 partials ⚠️
...ompositeindex/datacube/startree/StarTreeField.java	80.00%	2 Missing and 5 partials ⚠️
...nsearch/index/mapper/CompositeMappedFieldType.java	64.70%	6 Missing ⚠️
...h/index/compositeindex/CompositeIndexSettings.java	58.33%	4 Missing and 1 partial ⚠️
.../index/compositeindex/CompositeIndexValidator.java	50.00%	3 Missing and 1 partial ⚠️
...ensearch/index/compositeindex/datacube/Metric.java	80.00%	1 Missing and 3 partials ⚠️
... and 10 more

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x   #15320      +/-   ##
============================================
+ Coverage     71.53%   71.57%   +0.04%     
- Complexity    62954    63060     +106     
============================================
  Files          5158     5172      +14     
  Lines        295467   295983     +516     
  Branches      43032    43114      +82     
============================================
+ Hits         211367   211859     +492     
+ Misses        66378    66351      -27     
- Partials      17722    17773      +51     

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[sachinpkale]

Please mention conflicts occurred (if any) while creating the manual backport.

[github-actions]

✅ Gradle check result for e7a3396: SUCCESS