OpenAPI 3.1.0 - Header Object fields

[char0n]

According to OpenAPI 3.1.0 JSON Schemas, following fields are not permitted as fixed fields in Header Object any more:

• allowEmptyValues
• allowReserved
• in
• name

We already forbid to use (parse, refract, lint) in and name fields, but allow allowEmptyValues and allowReserved. The goal of this issue is to rectify this situation and trigger WARNING during linting.