Feature/eli 293 oas updates to align with VitA#23

eddalmond1 merged 9 commits intomainNHSDigital/eligibility-signposting-api-specification:mainfrom

feature/eli-293-oas-updates-to-align--with-VitANHSDigital/eligibility-signposting-api-specification:feature/eli-293-oas-updates-to-align--with-VitACopy head branch name to clipboard