chore: release 2.51.4 [skip ci]

Author: aws-amplify-ops

AmplifyPlugins/Core/AmplifyCredentials/AmplifyAWSServiceConfiguration.swift

@@ -15,7 +15,7 @@ import Foundation
 public class AmplifyAWSServiceConfiguration {
 
     /// - Tag: AmplifyAWSServiceConfiguration.amplifyVersion
-    public static let amplifyVersion = "2.51.3"
+    public static let amplifyVersion = "2.51.4"
 
     /// - Tag: AmplifyAWSServiceConfiguration.platformName
     public static let platformName = "amplify-swift"