chore(ci): default Node 25.9.0 in setup action (#169)

Author: jdalton

.github/actions/setup/action.yml

@@ -14,7 +14,7 @@ inputs:
   node-version:
     description: 'Node.js version'
     required: false
-    default: '22'
+    default: '25.9.0'
   pnpm-version:
     description: 'pnpm version'
     required: false