public ActionResult <Output.HolidayOutputModel?> GetHoliday(
[Range(0, int.MaxValue)] int year
, [Range(1, 12)] int month
, [Range(1, 31)] int dayOfMonth
)
{
var result = holidayService.GetHoliday(dayOfMonth, month, year);
return(result.HasErrors switch
{
true => BadRequest(result.Errors),
false => Ok(result.Data)
});