chore: release 2.2.0 [skip ci]

Author: aws-amplify-bot

AmplifyPlugins/Core/AWSPluginsCore/ServiceConfiguration/AmplifyAWSServiceConfiguration.swift

@@ -9,7 +9,7 @@ import Foundation
 import AWSClientRuntime
 
 public class AmplifyAWSServiceConfiguration {
-    public static let amplifyVersion = "2.1.0"
+    public static let amplifyVersion = "2.2.0"
     public static let platformName = "amplify-ios"
 
     public static func frameworkMetaData() -> FrameworkMetadata {