Instant Pot Shrimp and Grits

Name: Instant Pot Shrimp and Grits
Ingredients: 2 tablespoons olive oil; 1/2 pound andouille sausage, cut into small dice; 1 yellow onion, cut into small dice (about 2 cups); 3 cloves garlic, minced; 3/4 cup dry white wine; 3 cups low-sodium chicken broth; 1 cup whole milk; 3/4 cup grits; 4 sprigs fresh thyme; Kosher salt and freshly ground black pepper; 1 pint cherry tomatoes, halved; 1 green bell pepper, cut into small dice; 1 red bell pepper, cut into small dice; 1 pound large shrimp, peeled, deveined and tails removed; 2 teaspoons Cajun seasoning; 3 dashes hot sauce, optional; 4 tablespoons (1/2 stick) unsalted butter; 2 tablespoons chopped fresh chives