By Orhan Qereman, Suleiman Al-Khalidi and Phil Stewart QAMISHLI, Syria (Reuters) – A rare U.S. helicopter raid on a government-held village in Syria’s northeast killed an Islamic State official hiding out there on Thursday, the U.S. military and two security sources said. The United States has carried out previous raids in Syria against members of Islamic State, but Thursday’s would be the first known operation against the group in a zone held by forces loyal to President Bashar al-Assad. Early on Thursday, U.S. special forces carried out a rare operation on the government-held village of Mulu…