fix: make link.Headers use HeaderRef (#189)
fix: make link.Headers use HeaderRef (#189)

* fix: make link.Headers use HeaderRef

* refactor: remove headers entirely

Co-authored-by: John Stableford <9130a1cac67a8b2e7d7c7bd44309f9291284871d@digio.com.au>
Co-authored-by: John Stableford <9130a1cac67a8b2e7d7c7bd44309f9291284871d@latitudefinancial.com>
getkin/kin-openapi