RichText: don't apply input transform when there's no onReplace - #80978

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