i18n: sync zh/ja/ko translations with upstream/main (2026-10-13) - #1943

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: swift-actions/setup-swift@7ca6abe6b3b0e8b5421b88be48feee39cbf52c6a. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/