JAKARTA: Indonesian Vice President Gibran Rakabuming Raka resigned on Thursday amid a scandal over his academic qualifications, adding to a series of political upheavals in Southeast Asia’s largest economy. The 39-year-old son of former President Joko Widodo formally delivered his resignation letter to the People’s Consultative Assembly, or MPR, the country’s highest legislative body, setting in motion a process to elect a successor who will…