Update Copyright (#25224)

utils/build/rollup.config.js

@@ -252,7 +252,7 @@ function header() {
 
 			return `/**
  * @license
- * Copyright 2010-2022 Three.js Authors
+ * Copyright 2010-2023 Three.js Authors
  * SPDX-License-Identifier: MIT
  */
 ${ code }`;