[ENHANCEMENT] Instrumental field automatically added in the metadata if the song is a variation - #7879

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: vkirilichev/changed-lines-count-labeler@v0.2. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/