SPINEDEM-2190 replacing fhir.nhs.uk/R4 to fhir.hl7.org.uk#1217

kieronharper1 wants to merge 2 commits intomasterNHSDigital/personal-demographics-service-api:masterfrom

SPINEDEM-2190-remove-remaining-r4-uriNHSDigital/personal-demographics-service-api:SPINEDEM-2190-remove-remaining-r4-uriCopy head branch name to clipboard