fix: setup pnpm in Actions

Author: portalhacker

.github/workflows/deploy.yml

@@ -30,15 +30,19 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10
       - name: Set up Node
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22.12
           cache: 'pnpm'
       - name: Install dependencies
-        run: npm ci
+        run: pnpm install
       - name: Build
-        run: npm run build
+        run: pnpm build
       - name: Setup Pages
         uses: actions/configure-pages@v4
       - name: Upload artifact