Lightly coat corn with cooking spray, and place in a single layer in air fryer basket. Cook at 400°F until tender and slightly charred, 14 minutes, turning corn over halfway through cooking. Meanwhile, stir together butter, garlic, lime zest, and lime juice in a small microwavable bowl. Microwave on HIGH until butter is melted and garlic is fragrant, about 30 seconds. Place corn on a platter and pour over butter mixture. Sprinkle with salt, pepper, and cilantro. Serve immediately.