Reformat auto_mocks_test

PiperOrigin-RevId: 348535917
diff --git a/test/builder/auto_mocks_test.dart b/test/builder/auto_mocks_test.dart
index 81a2769..2caf270 100644
--- a/test/builder/auto_mocks_test.dart
+++ b/test/builder/auto_mocks_test.dart
@@ -62,7 +62,8 @@
   const _Immutable();
 }
 const immutable = _Immutable();
-'''};
+'''
+};
 
 const simpleTestAsset = {
   'foo|test/foo_test.dart': '''
@@ -2093,7 +2094,8 @@
     );
   });
 
-  test('adds ignore: must_be_immutable analyzer comment if mocked class is '
+  test(
+      'adds ignore: must_be_immutable analyzer comment if mocked class is '
       'immutable', () async {
     await expectSingleNonNullableOutput(
       dedent(r'''