Daddy Yankee is nearing his swan song. The Latin music superstar announced Sunday that he plans to retire after releasing a final studio album and embarking on a world tour. The Puerto Rican reggaeton artist’s final album, “Legendaddy,” comes out Thursday, Daddy Yankee said in a video announcement. The 45-year-old Daddy Yankee will then begin his “Legendaddy” tour on Aug. 10 in Portland, and will perform in New York on Sept. 20. The tour’s concert venues aren’t listed on Daddy Yankee’s website. His tour also includes stops in Los Angeles, Miami, Atlanta, Chicago, Dallas and Boston, and will ta…