Update Node.js to v21

Author: renovate[bot]

.circleci/config.yml

@@ -59,7 +59,7 @@ jobs: # a collection of steps
 
   vue-tests:
     docker:
-      - image: cimg/node:20.8.0
+      - image: cimg/node:21.2.0
     working_directory: ~/laravel
     steps:
       - checkout