feat: DTOSS-8078-Update GetValidationExceptions tests#840

Swapnil261188 merged 4 commits intomainNHSDigital/dtos-cohort-manager:mainfrom

DTOSS-8078-Update-GetValidationExceptions-testsNHSDigital/dtos-cohort-manager:DTOSS-8078-Update-GetValidationExceptions-testsCopy head branch name to clipboard