NEW YORK — A teenage suspect was arrested early Saturday for killing a 16-year-old girl with a stray bullet when he opened fire outside a Bronx high school in an apparent gang dispute, police said Saturday. Jerimiah Ryan, 17, faces murder, attempted murder and weapons possession charges for the Friday afternoon slaying of Angellyh Yambo, said NYPD Police Commissioner Keechant Sewell outside the 40th Precinct station house. Two other teens were wounded when Ryan allegedly sprayed a half-dozen bullets from a half-block away outside University Heights High School’s South Bronx Campus. “While Ange…