feat: add GitHub Pages deploy workflow with pnpm

Author: junioweb

.github/workflows/deploy.yml

@@ -21,12 +21,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 9
       - uses: actions/setup-node@v4
         with:
           node-version: 20
-          cache: 'npm'
-      - run: npm ci
-      - run: npm run build
+          cache: 'pnpm'
+      - run: pnpm install
+      - run: pnpm run build
       - uses: actions/upload-pages-artifact@v3
         with:
           path: ./dist