fix copyright

lib/web_ui/lib/src/engine/text_editing/input_action.dart

@@ -1,4 +1,4 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
+// Copyright 2022 The Flutter Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 

lib/web_ui/lib/src/engine/text_editing/text_editing.dart

@@ -1181,7 +1181,7 @@ abstract class DefaultTextEditingStrategy with CompositionAwareMixin implements
     if (config.inputType == EngineInputType.none) {
       activeDomElement.setAttribute('inputmode', 'none');
     }
-    
+
     final EngineInputAction action = EngineInputAction.fromName(config.inputAction);
     action.configureInputAction(activeDomElement);