feat: add state field on DataPlaneInstance response

[wolf4ood]

What this PR changes/adds

add state field on DataPlaneInstance response

Why it does that

Briefly state why the change was necessary.

Further notes

List other areas of code that have changed but are not necessarily linked to the main feature. This could be method
signature changes, package declarations, bugs that were encountered and were fixed inline, etc.

Linked Issue(s)

Closes #4335

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[ndr-brt]

I would add the state field on the DataPlaneInstanceSchema and example, so it will require (and justify) a change in the management version file

[wolf4ood]

@ndr-brt added

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 83.33333% with 1 line in your changes missing coverage. Please review.

Project coverage is 75.30%. Comparing base (7f20ba5) to head (4f2868e).
Report is 349 commits behind head on main.

Files	Patch %	Lines
...c/to/JsonObjectToDataPlaneInstanceTransformer.java	0.00%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4350      +/-   ##
==========================================
+ Coverage   71.74%   75.30%   +3.56%     
==========================================
  Files         919     1053     +134     
  Lines       18457    21175    +2718     
  Branches     1037     1182     +145     
==========================================
+ Hits        13242    15946    +2704     
+ Misses       4756     4710      -46     
- Partials      459      519      +60     

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