Home Assistant OS 16.0.rc1 contains bump of Hailo driver and firmware to
v4.21.0, update Frigate's userspace libraries to the same version to fix
compatibility.
The upcoming HAOS 15.0 will use Hailo driver v4.20.1. The current dev
has the older patch release (v4.20.0) staged for future versions, but
since new Frigate build will be needed for future compatibility, it
makes sense to sync at the latest one.
Link: https://github.com/home-assistant/operating-system/pull/3922