By Uditha Jayasinghe, Devjyot Ghoshal and Waruna Cudah Nimal Karunatilake COLOMBO (Reuters) -Sri Lankan President Gotabaya Rajapaksa fled to the Maldives on Wednesday, driven out after an economic collapse unleashed a popular uprising that appeared to end his family’s near two-decade dominance of the country. His decision to leave his ally Prime Minister Ranil Wickremesinghe in charge as acting president triggered more demonstrations, with protesters storming the premier’s office demanding that he go too. Rajapaksa, his wife and two bodyguards left the main international airport near Colombo a…