[backend] users add relations in orga admin context (#13901)

[Archidoit]

Related issue

#13901

[codecov]

Codecov Report

❌ Patch coverage is 58.33333% with 15 lines in your changes missing coverage. Please review.
✅ Project coverage is 30.83%. Comparing base (396f8da) to head (4b98c39).
⚠️ Report is 6 commits behind head on master.

Files with missing lines	Patch %	Lines
...pencti-platform/opencti-graphql/src/domain/user.js	58.33%	15 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #13902   +/-   ##
=======================================
  Coverage   30.82%   30.83%           
=======================================
  Files        2911     2911           
  Lines      192849   192847    -2     
  Branches    39368    39364    -4     
=======================================
+ Hits        59449    59464   +15     
+ Misses     133400   133383   -17     

Flag	Coverage Δ
opencti	30.83% <58.33%> (+<0.01%)	⬆️
opencti-front	2.48% <ø> (+<0.01%)	⬆️
opencti-graphql	68.21% <58.33%> (+<0.01%)	⬆️

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[labo-flg]

Thanks for the fix !
This is a quite sensitive area of the code base, can we had tests please.

[Archidoit]

Backend tests have been added !