fix(litestar DTO): Ensure ORM descriptor fields are not evaluated during DTO creation

[provinzkraut]

Fix #646.

When processing property fields on SQLAlchemy models for the Litestar DTO, there was sometimes unexpected behaviour caused by the inspecting code evaluating the ORM descriptors such as hybrid_property.

Fix this behaviour by skipping all known ORM fields (as reported by the ORM), and not using inspect.getmembers.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
93.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov-commenter]

Codecov Report

❌ Patch coverage is 91.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 79.08%. Comparing base (ebc1c2a) to head (598922b).

Files with missing lines	Patch %	Lines
advanced_alchemy/extensions/litestar/dto.py	91.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #664      +/-   ##
==========================================
+ Coverage   79.06%   79.08%   +0.01%     
==========================================
  Files          99       99              
  Lines        7915     7922       +7     
  Branches     1073     1073              
==========================================
+ Hits         6258     6265       +7     
- Misses       1315     1316       +1     
+ Partials      342      341       -1     

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[cofin]

LGTM - much more elegant than what I tried to do.