ci(web.yml): Update pnpm v9 Nodejs20

.github/workflows/web.yml

@@ -25,13 +25,13 @@ jobs:
       - name: Install Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 16
+          node-version: 20
 
       - uses: pnpm/action-setup@v4
         name: Install pnpm
         id: pnpm-install
         with:
-          version: 8
+          version: 9
           run_install: false
 
       - name: Get pnpm store directory