fix(issue-10): commit 模式缺 SHA 静默降级 fail-open——改为 fail-closed 报错 - #20

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, actions/setup-go@v5, actions/setup-node@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Restore cache failed: Dependencies file is not found in /home/runner/work/dsh-code-review/dsh-code-review. Supported file pattern: go.sum