chore: dart format

Author: khatruong2009

packages/auth/amplify_auth_cognito_dart/lib/src/state/machines/sign_in_state_machine.dart

@@ -660,8 +660,7 @@ final class SignInStateMachine
     final allowedMfaTypes = _allowedMfaTypes;
     // Exclude MfaType.sms from consideration
     final mfaTypesForSetup = allowedMfaTypes?.difference({MfaType.sms});
-    if (allowedMfaTypes == null ||
-        allowedMfaTypes.isEmpty) {
+    if (allowedMfaTypes == null || allowedMfaTypes.isEmpty) {
       throw const InvalidUserPoolConfigurationException(
         'No eligible MFA types are allowed for setup.',
         recoverySuggestion: 'Check your user pool MFA configuration.',