chore: dart format

Author: khatruong2009

packages/authenticator/amplify_authenticator/example/integration_test/main_test.dart

@@ -19,7 +19,8 @@ import 'sign_in_mfa_sms_email_test.dart' as sign_in_mfa_sms_email_tests;
 import 'sign_in_mfa_sms_test.dart' as sign_in_mfa_sms_tests;
 import 'sign_in_mfa_sms_totp_test.dart' as sign_in_mfa_sms_totp_tests;
 import 'sign_in_mfa_totp_test.dart' as sign_in_mfa_totp_tests;
-import 'sign_in_mfa_username_login_test.dart' as sign_in_mfa_username_login_tests;
+import 'sign_in_mfa_username_login_test.dart'
+    as sign_in_mfa_username_login_tests;
 import 'sign_in_with_email_test.dart' as sign_in_with_email_tests;
 import 'sign_in_with_phone_test.dart' as sign_in_with_phone_tests;
 import 'sign_in_with_username_test.dart' as sign_in_with_username_tests;

packages/authenticator/amplify_authenticator/lib/src/blocs/auth/auth_bloc.dart

@@ -543,7 +543,8 @@ class StateMachineBloc
     yield* const Stream.empty();
   }
 
-  Future<UnauthenticatedState> _handleMfaSetupSelection(SignInResult result) async {
+  Future<UnauthenticatedState> _handleMfaSetupSelection(
+      SignInResult result) async {
     final allowedMfaTypes = result.nextStep.allowedMfaTypes;
 
     if (allowedMfaTypes == null) {
@@ -556,7 +557,8 @@ class StateMachineBloc
     final mfaTypesForSetup = allowedMfaTypes.toSet()..remove(MfaType.sms);
 
     if (mfaTypesForSetup.length != 1) {
-      return ContinueSignInWithMfaSetupSelection(allowedMfaTypes: allowedMfaTypes);
+      return ContinueSignInWithMfaSetupSelection(
+          allowedMfaTypes: allowedMfaTypes);
     }
 
     final mfaType = mfaTypesForSetup.first;