WASHINGTON — U.S. forces say they have killed a high-ranking member of the Islamic State terrorist militia in Syria in an airstrike. “U.S. Central Command conducted an airstrike in Syria, killing Usamah Jamal Muhammad Ibrahim al-Janabi, a senior ISIS official and facilitator,” the U.S. Central Command, or CENTCOM, said in a post on social media platform X on Wednesday. “His death will disrupt…