Adding a note about Node.js update (to version 18.18.2) into changelog.

Author: iamstolis

CHANGELOG.md

@@ -10,6 +10,7 @@ See [release calendar](https://www.graalvm.org/release-calendar/) for release da
 * Implemented the [Promise.withResolvers](https://github.com/tc39/proposal-promise-with-resolvers) proposal. It is available in ECMAScript staging mode (`--js.ecmascript-version=staging`).
 * Implementation of [Async Iterator Helpers](https://github.com/tc39/proposal-async-iterator-helpers) proposal (that was split out from Iterator Helpers proposal) was moved behind the experimental option `--js.async-iterator-helpers`.
 * Implemented the [Well-Formed Unicode Strings](https://github.com/tc39/proposal-is-usv-string) proposal. It is available in ECMAScript staging mode (`--js.ecmascript-version=staging`).
+* Updated Node.js to version 18.18.2.
 
 ## Version 23.1.0
 * NOTE: GraalVM no longer ships with a "js" ScriptEngine. Please either use the Maven dependency or explicitly put `js-scriptengine.jar` on the module path. See [ScriptEngine documentation](docs/user/ScriptEngine.md) for details.