Added bump-year script.

package.json

@@ -18,7 +18,7 @@
   "homepage": "https://ckeditor.com/ckeditor-5",
   "devDependencies": {
     "@ckeditor/ckeditor5-dev-docs": "^26.0.0",
-    "@ckeditor/ckeditor5-dev-env": "^26.0.0",
+    "@ckeditor/ckeditor5-dev-env": "^27.4.0",
     "chalk": "^4.1.2",
     "eslint": "^7.32.0",
     "eslint-config-ckeditor5": "^3.1.0",

scripts/bump-year.js

@@ -0,0 +1,40 @@
+#!/usr/bin/env node
+
+/**
+ * @license Copyright (c) 2020-2022, CKSource - Frederico Knabben. All rights reserved.
+ * For licensing, see LICENSE.md.
+ */
+
+/* eslint-env node */
+
+/*
+
+Usage:
+node scripts/bump-year.js
+
+And after reviewing the changes:
+git commit -am "Internal: Bumped the year." && git push
+
+*/
+
+require( '@ckeditor/ckeditor5-dev-env' )
+	.bumpYear( {
+		cwd: process.cwd(),
+		globPatterns: [
+			{ // LICENSE.md, .eslintrc.js, etc.
+				pattern: '*',
+				options: {
+					dot: true
+				}
+			},
+			{
+				pattern: '!(coverage|.nyc_output)/**',
+				options: {
+					ignore: [
+						'**/templates/**'
+					]
+				}
+			}
+		],
+		initialYear: '2020'
+	} );