fix: action as @id if it's not refined

[wolf4ood]

What this PR changes/adds

Fixes the serialization of an Action

Currently the output is when the action is not refined

 "odrl:action": {
    "odrl:type": "http://www.w3.org/ns/odrl/2/use"
   }

Now it changes to :

 "odrl:action": {
    "@id": "odrl:use"
   }

Since now the action is an @id in compaction phase:

http://www.w3.org/ns/odrl/2/use => odrl:use

Why it does that

bug fix

Further notes

This is a breaking change for the MGMT API mostly since at protocol level older EDC should be able to deal wit the @id syntax.

The patch also support in input the old wrong type when deserializing the action from json.

Linked Issue(s)

Closes #4192

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 66.66667% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 74.98%. Comparing base (7f20ba5) to head (47af2c6).
Report is 259 commits behind head on main.

Files	Patch %	Lines
...orm/odrl/from/JsonObjectFromPolicyTransformer.java	57.14%	0 Missing and 3 partials ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4193      +/-   ##
==========================================
+ Coverage   71.74%   74.98%   +3.24%     
==========================================
  Files         919     1015      +96     
  Lines       18457    20635    +2178     
  Branches     1037     1163     +126     
==========================================
+ Hits        13242    15474    +2232     
+ Misses       4756     4651     -105     
- Partials      459      510      +51     

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