Caleel Harris, left, Blair Underwood, Ethan Herisse and Marquis Rodriguez in Netflix and Ava DuVernay’s “When They See Us.” Ava DuVernay and Netflix have settled a defamation lawsuit filed by a former New York City prosecutor who disapproved of her portrayal in the acclaimed limited series “When They See Us.” Defendants Netflix and DuVernay released a joint statement Tuesday with …