SAN DIEGO — San Diego’s Petco Park has hosted concerts by everyone from the Rolling Stones, Metallica and Taylor Swift to Billy Joel, Madonna and Green Day, but never by a reggaeton or Latin trap music artist. That will change on Sept. 17 when Puerto Rican-bred superstar Bad Bunny headlines at the stadium, the home of the San Diego Padres. The concert here, which will feature an opening set by Alesso, is one of 15 U.S. stadium shows the 27-year-old San Juan native will perform as part of what is being billed as “Summer’s Hottest Tour.” Alesso and Diplo will alternate as opening acts. Intriguin…