GoPro has released a new product that is compatible with its pre-existing mounts. However, it is not an action-cam: it is instead a mini LED floodlight intended to be used with one of them, the HERO8 Black. It can also clip onto this device, although it needs a 2nd accessory to do so.
https://www.notebookcheck.net/GoPro-launches-the-Light-Mod-for-the-HERO8-Black.448175.0.html