Bump Node.js to v24.1.0 in deploy workflow

Update .github/workflows/deploy.yml to use actions/setup-node@v4 with node-version "24.1.0" instead of 18. This ensures the deployment CI runs on the newer Node.js 24 runtime while keeping npm caching configured.

Author: cklei-carly

.github/workflows/deploy.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: "18"
+          node-version: "24.1.0"
           cache: "npm"
 
       - name: Install dependencies