Last week, DoorDash agreed to a $131 million settlement with New York City to resolve a probe that found it not only underpaid many delivery workers but also paid them late. The workforce of the future, however, may be much less insistent on getting its due, not needing to worry about paying the rent or buying food. Whether it’s self-driving robotaxis, flying delivery drones or four-wheeled courier robots, Silicon Valley is rapidly turning to a…