chore: adjust node update schedule

Author: devpow112

.github/workflows/update-node.yml

@@ -4,7 +4,7 @@ on:
     branches: main
     paths: .github/workflows/update-node.yml
   schedule:
-    - cron: '0 15 * * *'
+    - cron: '0 15 * * 1-5'
   workflow_dispatch:
 permissions:
   contents: read