Release 4.18.1: website docs, latest_release, news and docker image version - #4890

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@v4, mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/