fix(issue-2282): make params optional in confirmPayment method to solve #2282

Author: GiacomoTui

packages/stripe_ios/ios/stripe_ios/Sources/stripe_ios/Stripe Sdk/StripeSdkImpl.swift

@@ -819,7 +819,7 @@ public class StripeSdkImpl: NSObject, UIAdaptivePresentationControllerDelegate {
     @objc(confirmPayment:data:options:resolver:rejecter:)
   public func confirmPayment(
         paymentIntentClientSecret: String,
-        params: NSDictionary,
+        params: NSDictionary?,
         options: NSDictionary,
         resolver resolve: @escaping RCTPromiseResolveBlock,
         rejecter reject: @escaping RCTPromiseRejectBlock

packages/stripe_ios/ios/stripe_ios/Sources/stripe_ios/StripePlugin.swift

@@ -544,12 +544,11 @@ extension  StripePlugin {
     func confirmPayment(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
         guard let arguments = call.arguments as? FlutterMap,
               let paymentIntentClientSecret = arguments["paymentIntentClientSecret"] as? String,
-              let options = arguments["options"] as? NSDictionary,
-              let params = arguments["params"] as? NSDictionary else {
+              let options = arguments["options"] as? NSDictionary else {
             result(FlutterError.invalidParams)
             return
         }
-        
+        let params = arguments["params"] as? NSDictionary
         confirmPayment(
             paymentIntentClientSecret: paymentIntentClientSecret,
             params: params,