fix(audio-win): install 幂等——单例适配器下不再堆叠幽灵节点/漂移端点 GUID - #61

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/