feat: sanitise client fields for resource_server app type

[kushalshit27]

🔧 Changes

sanitisation step for client objects to ensure that certain fields are removed from clients of the resource_server app type before processing changes. This helps prevent inappropriate fields from being included for resource server clients.

📚 References

• feat: Support Token Vault #1158

🔬 Testing

• Unit test pass ✅

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 40.00000% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.15%. Comparing base (1edcd17) to head (ad9e49d).
⚠️ Report is 94 commits behind head on master.

Files with missing lines	Patch %	Lines
src/tools/auth0/handlers/clients.ts	40.00%	3 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1164      +/-   ##
==========================================
- Coverage   80.24%   80.15%   -0.09%     
==========================================
  Files         131      131              
  Lines        5000     5010      +10     
  Branches      990      994       +4     
==========================================
+ Hits         4012     4016       +4     
- Misses        571      574       +3     
- Partials      417      420       +3     

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