fix(eval): 可观测性链路把用户取消的运行记成 cancelled，不再记成任务失败 - #255

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/