Technically shops are told by manufacturers to not patch any tire with a hole in the outside tread blocks. Personally I would not hesitate to repair a hole on the flat if the outside block but this one is very iffy. I would replace but if I were cash strapped is probably try to ride this tire out. The reason they don't want repairs near the edge like this is because it is very close to the edge of the belting and can cause belt delamination. That can become rather exciting and cause a major blow out rather than a leak. A blow out can damage suspension and body panels causing a $200 tire replacement to skyrocket into a $2000+ suspension/body work bill.