This week, Apple exorcised its Mac lineup of one particular tech spec that has been a PC standard for almost a decade. I’m talking, of course, about selling PCs with 8GB of RAM. Not only did Apple remove 8GB configurations from its new M4 MacBook Pros, Mac mini, and iMac, it even went back to its lineup of MacBook Air models and bumped everything up to 16GB. Apple was widely expected to make this change on the M4 MacBook Pro after receiving pushback on last year’s M3 model, but not…