Refactor GitHub Actions workflow to use latest pnpm version and improve setup process

.github/workflows/ci.yml

@@ -40,20 +40,20 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [20.x, 21.x]
+        node-version: [20.x, 21.x, 22.x, 23.x, 24.x]
     steps:
       - uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: latest
       
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
           cache: 'pnpm'
-
-      - name: Setup pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 9
       
       - name: Install dependencies
         run: pnpm install --frozen-lockfile