add: pnpm in CD workflow

Author: roxylius

.github/workflows/deploy.yml

@@ -12,15 +12,17 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
           node-version: '20'
           cache: 'pnpm'
 
-      - name: Install pnpm
-        run: npm install -g pnpm
-
       - name: Install dependencies
         run: pnpm install