Instant Pot Carnitas

Name: Instant Pot Carnitas
Ingredients: 1 boneless pork shoulder (6 pounds), trimmed of excess fat and cut into 2-inch pieces; 2 tablespoons chopped chipotle chiles in adobo sauce (2 chiles); Kosher salt; 2 teaspoons dried oregano; 1 ½ teaspoons ground cumin; 1 teaspoon cayenne pepper; ¼ cup fresh orange juice (from 1 orange); 2 tablespoons fresh lime juice (from 1 lime), plus lime wedges for serving; 1 yellow onion, peeled and quartered; 8 cloves garlic, smashed and peeled; Corn tortillas, for serving; Shredded red cabbage, chopped avocado, cilantro leaves, and crumbled queso fresco, for serving