Select Sauté on the Instant Pot® and add the bacon. Cook until the bacon is crispy and almost all the fat has rendered, about 5 minutes. Add the butter, onion, carrot, and celery and cook until softened, about 5 minutes. Add the garlic and cook until fragrant, about 1 minute. Add the beef, pork, and sage and cook, breaking up the meat with a wooden spoon, for 5 minutes. Add the wine and cook until combined. Add the tomato paste, tomatoes, 3 teaspoons salt, and 3 teaspoons pepper and stir to combine. Press the Cancel button to reset the program.