bot: Update MusicSearch to 1.8.0-beta.15 (507)
~io.github.lydavid.musicsearch checkupdates-bot run https://gitlab.com/fdroid/checkupdates-runner/-/jobs/8354923514
~io.github.lydavid.musicsearch checkupdates-bot run https://gitlab.com/fdroid/checkupdates-runner/-/jobs/8354923514