Reduce permissions for node CI workflows

Author: MaddyGuthridge

.github/workflows/node.js.yml

@@ -2,6 +2,8 @@
 # For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-nodejs
 
 name: Test and lint
+permissions:
+  contents: read
 
 on:
   push: