fix(deploy): 一级子域跳过 Total TLS——Universal SSL 通配覆盖，免费计划无 ACM 报 1450 - #70

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