cicd: use latest pnpm

Author: Codex-

.github/workflows/build.yml

@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: pnpm/action-setup@v4
         with:
-          version: 9.15.9
+          version: 10.18.2
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v5
         with: