Fix: Generate transformers for allOf response schemas
The transformer plugin was incorrectly skipping response schemas with allOf compositions. The check for multiple response items was conflating:
1. Multiple 2XX status codes (union with logicalOperator: 'or')
2. AllOf compositions (intersection with logicalOperator: 'and')
Fix: Only skip transformer generation when there are multiple response status codes (logicalOperator !== 'and'), not when there's an allOf/intersection composition.
Co-authored-by: mrlubos <12529395+mrlubos@users.noreply.github.com>