chore: add test to presenationquery transformer

[paullatzelsperger]

What this PR changes/adds

Adds two test cases to the JsonObjectToPresentationQueryTransformer, testing an empty array and a null array for the scope parameter

Why it does that

test coverage

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)

Contributes #4322

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[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.21%. Comparing base (7f20ba5) to head (20c2c62).
Report is 336 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4324      +/-   ##
==========================================
+ Coverage   71.74%   75.21%   +3.46%     
==========================================
  Files         919     1053     +134     
  Lines       18457    21135    +2678     
  Branches     1037     1184     +147     
==========================================
+ Hits        13242    15896    +2654     
+ Misses       4756     4722      -34     
- Partials      459      517      +58     

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