fix: make time format more strict to stop invalid time date flowing#92

georgeRobertson merged 2 commits intorelease_v080NHSDigital/data-validation-engine:release_v080from

fix/ndit-1166_make_time_format_stricterNHSDigital/data-validation-engine:fix/ndit-1166_make_time_format_stricterCopy head branch name to clipboard