Prevent spectator block configuration 禁止旁观者修改方块配置 - #6087

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-java@v3.6.0, actions/upload-artifact@v4.3.3, gradle/actions/setup-gradle@v4.3.1, Gu-ZT/toml-reader-action@1.0.0. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/