ATLANTA — With just one day of voting left, state lawmakers in Georgia face decisions on whether to expand the places where people can carry guns, whether to create a medical marijuana program for the ill and how to overhaul the child welfare system. The General Assembly holds its final meeting of the legislative year today, which it calls “Sine Die.” The legislature meets just 40 working days a year, and any bill that doesn’t pass on the final day automatically fails for the year.