feat(SPV-1295): testabilities for contacts admin

[dzolt-4chain]

Pull Request Checklist

• 📖 I created my PR using provided : CODE_STANDARDS
• 📖 I have read the short Code of Conduct: CODE_OF_CONDUCT
• 🏠 I tested my changes locally.
• ✅ I have provided tests for my changes.
• 📝 I have used conventional commits.
• 📗 I have updated any related documentation.
• 💾 PR was issued based on the Github or Jira issue.

[github-actions]

Manual Tests

💚 Manual testing by @dorzepowski resulted in success.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 81.39535% with 16 lines in your changes missing coverage. Please review.

Project coverage is 46.11%. Comparing base (a4674ce) to head (453dd82).

Files with missing lines	Patch %	Lines
...ne/tester/paymailmock/mock_capability_factories.go	65.21%	6 Missing and 2 partials ⚠️
engine/action_contact.go	0.00%	3 Missing ⚠️
engine/contact/testabilities/assert_contact.go	92.10%	3 Missing ⚠️
engine/tester/paymailmock/mock_capability.go	71.42%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #842      +/-   ##
==========================================
- Coverage   46.18%   46.11%   -0.07%     
==========================================
  Files         373      376       +3     
  Lines       17933    18014      +81     
==========================================
+ Hits         8282     8307      +25     
- Misses       9027     9086      +59     
+ Partials      624      621       -3     

Flag	Coverage Δ
unittests	46.11% <81.39%> (-0.07%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
engine/contact/testabilities/ability_contact.go	100.00% <100.00%> (ø)
engine/contact/testabilities/fixture_contact.go	100.00% <100.00%> (ø)
engine/testabilities/fixture_engine.go	90.43% <100.00%> (+0.16%)	⬆️
engine/tester/fixtures/users_fixtures.go	26.56% <ø> (ø)
engine/tester/paymailmock/mock_capability.go	78.94% <71.42%> (+1.16%)	⬆️
engine/action_contact.go	27.80% <0.00%> (-9.85%)	⬇️
engine/contact/testabilities/assert_contact.go	92.10% <92.10%> (ø)
...ne/tester/paymailmock/mock_capability_factories.go	86.44% <65.21%> (-13.56%)	⬇️

... and 1 file with indirect coverage changes

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[dorzepowski]

Great job,
For me, it reads much better then the previous approach.