[fix][sec][branch-4.2] Upgrade Netty to 4.1.137 to address several CVEs and bugs - #26301

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. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/