fix: remove unused parentPermission field that caused stack overflow exceptions

[ndr-brt]

What this PR changes/adds

Remove unneeded parentPermission from Duty that caused StackOverflowException in json serialization.

Why it does that

cleanup

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 #3830

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[wolf4ood]

🪓

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.94%. Comparing base (7f20ba5) to head (0d2a0f2).
Report is 235 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4155      +/-   ##
==========================================
+ Coverage   71.74%   74.94%   +3.20%     
==========================================
  Files         919      986      +67     
  Lines       18457    20259    +1802     
  Branches     1037     1141     +104     
==========================================
+ Hits        13242    15184    +1942     
+ Misses       4756     4578     -178     
- Partials      459      497      +38     

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