Add read permission

Author: chgeo

.github/workflows/node.js.yml

@@ -12,6 +12,10 @@ on:
     types: [ labeled, opened, synchronize, reopened ]
   schedule:
     - cron: 20 4 * * *
+
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest