feat: extract OpenAPI schema from `Can` attribute

src/HttpResponder/HttpController.php

src/HttpRespondsWithAttributeCollection.php

src/OpenAPIMetadataResponseExtractor/CanExtractor.php

src/RespondsToHttpAttributeCollection.php

src/RespondsWithAttributeCollection.php

...ider/HttpControllerReflectionMethodCollectionProvider.php

src/SingletonProvider/OpenAPIPathItemCollectionProvider.php

...tonProvider/RespondsToHttpAttributeCollectionProvider.php

...letonProvider/RespondsWithAttributeCollectionProvider.php