Merge pull request #349 from ckeditor/ci/3923

Other: Upgraded the minimal version of Node.js to 20.0.0 due to the end of LTS.

MAJOR BREAKING CHANGE: Upgraded the minimal version of Node.js to 20.0.0 due to the end of LTS.

Author: przemyslaw-zan

package.json

@@ -74,7 +74,7 @@
     "ws": "^8"
   },
   "engines": {
-    "node": ">=18.0.0"
+    "node": ">=20.0.0"
   },
   "scripts": {
     "dev": "vite",