Walmart has unveiled the next chapter of its Dr. Seuss-inspired “WhoKnewVille” holiday campaign, with Walton Goggins playing the Grinch. The “White Lotus” actor is already a Walmart advertising regular; he appeared in the “Who Knew?” campaign earlier this year, which encouraged people to take a fresh look at the retail giant. That work has now expanded into the holidays with “WhoKnewVille,” which is Walmart’s version of Whoville, the colorful, picturesque town from the 1957 Seuss classic “How th