Align PassKit protocol abstractions with Swift 6

Author: kieran-osgood-shopify

platforms/swift/Sources/ShopifyAcceleratedCheckouts/Wallets/ApplePay/ApplePayAuthorizationDelegate/ApplePayAuthorizationDelegate.swift

@@ -6,16 +6,17 @@ import ShopifyCheckoutKit
 
 /// Protocol to abstract PKPaymentAuthorizationController for testing
 @available(iOS 16.0, *)
+@MainActor
 protocol PaymentAuthorizationController {
-    var delegate: PKPaymentAuthorizationControllerDelegate? { get set }
+    var delegate: (any PKPaymentAuthorizationControllerDelegate)? { get set }
     func present() async -> Bool
-    func dismiss(completion: (() -> Void)?)
+    func dismiss(completion: (@Sendable () -> Void)?)
 }
 
 extension PKPaymentAuthorizationController: PaymentAuthorizationController {}
 
 @available(iOS 16.0, *)
-typealias PKAuthorizationControllerFactory = (PKPaymentRequest) -> PaymentAuthorizationController
+typealias PKAuthorizationControllerFactory = @MainActor @Sendable (PKPaymentRequest) -> any PaymentAuthorizationController
 
 @available(iOS 16.0, *)
 @MainActor

platforms/swift/Sources/ShopifyAcceleratedCheckouts/Wallets/ApplePay/Data/PassKitFactory.swift

@@ -1,7 +1,7 @@
 import PassKit
 
 @available(iOS 16.0, *)
-class PassKitFactory {
+final class PassKitFactory: Sendable {
     static let shared = PassKitFactory()
 
     private struct DeliveryOptionWithGroupType {