chore(renovate): Configure nodejs updates to only even numbers

.gitlab/renovate.json

@@ -49,6 +49,10 @@
       "matchPackageNames": ["channels", "channels-redis", "daphne"],
       "groupName": "channels"
     },
+    {
+      "matchPackageNames": ["node"],
+      "allowedVersions": "/\d+[02468]$/"
+    },
     {
       "matchFiles": ["deploy/docker-compose.yml"],
       "matchPackageNames": ["postgres"],