Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, pnpm/action-setup@v2.2.4, actions/setup-node@v3.6.0, arduino/setup-protoc@v2.1.0, ./.github/actions/cargo-sweep. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

unused variable: `expected_stderr`