Fix permanent stall loading fragment-hint parts of encrypted low-latency streams (v1.6.x) - #7976

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: tjenkinson/gh-action-auto-merge-dependency-updates@964cf1547be62862846b42466ae1f68f7bdafee8. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/