chore: use pnpm and update gh actions

Author: yanglbme

.github/workflows/deploy.yml

@@ -13,17 +13,20 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
           node-version: 22
-          cache: npm
+          cache: pnpm
 
       - name: Install dependencies
-        run: npm ci
+        run: pnpm install --frozen-lockfile
 
       - name: Build with VitePress
-        run: npm run docs:build
+        run: pnpm run docs:build
 
       - name: Generate CNAME
         run: echo "doocs.org" > docs/.vitepress/dist/CNAME