Update Node.js to v18

.gitlab-ci.yml

@@ -1,7 +1,7 @@
 # This file is a template, and might need editing before it works on your project.
 # Official framework image. Look for the different tagged releases at:
 # https://hub.docker.com/r/library/node/tags/
-image: node:12
+image: node:18
 
 stages:
   - lint