fix(OpenAPI): Correctly handle type keyword

[provinzkraut]

Correctly handle OpenAPI schema generation for type aliases generated with the type keyword.

Fixes #3714.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.29%. Comparing base (d8b7d6e) to head (893a8f7).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3715   +/-   ##
=======================================
  Coverage   98.29%   98.29%           
=======================================
  Files         330      330           
  Lines       15118    15125    +7     
  Branches     2401     2403    +2     
=======================================
+ Hits        14860    14867    +7     
  Misses        116      116           
  Partials      142      142           

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarCloud