update copyright dates from daily grunt work

phetsims · Jan 7, 2022 · 3286ab3 · 3286ab3
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diff --git a/js/common/model/Scene.js b/js/common/model/Scene.js
@@ -1,4 +1,4 @@
-// Copyright 2018-2021, University of Colorado Boulder
+// Copyright 2018-2022, University of Colorado Boulder
 
 /**
  * The scene determines the medium and wave generator types, coordinate frames, relative scale, etc.  For a description

diff --git a/js/common/model/SoundScene.js b/js/common/model/SoundScene.js
@@ -1,4 +1,4 @@
-// Copyright 2018-2021, University of Colorado Boulder
+// Copyright 2018-2022, University of Colorado Boulder
 
 /**
  * The model for the Sound scene, which adds SoundParticle instances.  See the following pages for visualizations

diff --git a/js/waves/model/WavesModel.js b/js/waves/model/WavesModel.js
@@ -1,4 +1,4 @@
-// Copyright 2018-2021, University of Colorado Boulder
+// Copyright 2018-2022, University of Colorado Boulder
 
 /**
  * Model for the "Waves" screen and other derivative screens.  This model supports two sources, even though the waves