feat: implement validation middleware tests with tests and docs#152

Johnsmichael150 wants to merge 2 commits intoTalenttrust:mainTalenttrust/Talenttrust-Backend:mainfrom

Johnsmichael150:feature/backend-40-validation-middleware-testsJohnsmichael150/Talenttrust-Backend:feature/backend-40-validation-middleware-testsCopy head branch name to clipboard