By LAURENCE BUTET-ROCH, Photographs by LUISA DÖRR for National Geographic; Bolivia’s stylish Flying Cholitas have merged modern wrestling with their community’s history of activism. Noelia, a 19-year-old wrestler, poses for a photograph in her traditional cholita garb. “People need heroes, wrestlers, champions of their own who can be admired,” reflects Brazilian photographer Luisa Dörr, who spent ten days in…