CCM-17440: Update build-docs action to run npm ci from root#195

lapenna-bjss wants to merge 4 commits intomainNHSDigital/nhs-notify-shared-modules:mainfrom

bugfix/CCM-17440_run_ci_from_rootNHSDigital/nhs-notify-shared-modules:bugfix/CCM-17440_run_ci_from_rootCopy head branch name to clipboard