Reorder Node.js setup in CI/CD workflow for improved clarity and organization

Author: lulu0119

.github/workflows/main.yml

@@ -21,18 +21,18 @@ jobs:
             - name: Checkout code
               uses: actions/checkout@v4
 
-            - name: Setup Node.js
-              uses: actions/setup-node@v4
-              with:
-                  node-version: "20"
-                  cache: "pnpm"
-
             - name: Install pnpm
               uses: pnpm/action-setup@v3
               with:
                   version: 10.4.1
                   run_install: false
 
+            - name: Setup Node.js
+              uses: actions/setup-node@v4
+              with:
+                  node-version: "20"
+                  cache: "pnpm"
+
             - name: Get pnpm store directory
               shell: bash
               run: |