ci: use standalone pnpm installation

Author: haoqunjiang

.github/workflows/ci.yml

@@ -53,6 +53,8 @@ jobs:
       steps:
         - uses: actions/checkout@v4
         - uses: pnpm/action-setup@v3
+          with:
+            standalone: true
         - uses: actions/setup-node@v4
           with:
             node-version: ${{ matrix.node-version }}