Adds new plugin [LanKing/ha-mdi-off-fallback] - #9754

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: cardinalby/schema-validator-action@3.1.1. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/