fix(OpenAPI): Document unconsumed path parameters

[provinzkraut]

Fix a bug where path parameters not consumed by route handlers would not be included in the OpenAPI schema.

from litestar import Litestar, get


@get("/{param:str}")
async def handler() -> None:
    pass

This could would not include the {param} in the schema, yet it is still required to be passed when calling the path.

Fix #3290.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.23%. Comparing base (576bae9) to head (c3d9853).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3295   +/-   ##
=======================================
  Coverage   98.23%   98.23%           
=======================================
  Files         320      320           
  Lines       14474    14476    +2     
  Branches     2304     2304           
=======================================
+ Hits        14219    14221    +2     
  Misses        114      114           
  Partials      141      141           

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[sonarcloud]

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

[github-actions]

Documentation preview will be available shortly at https://litestar-org.github.io/litestar-docs-preview/3295