Hi,
in the meanwhile, can you try this Debian Buster workaround? It should fix your issue for now.
RUN apt-get update && apt-get install libraspberrypi-bin=1.20180328-1~nokernel1 libraspberrypi0=1.20180328-1~nokernel1 --allow-downgrades -y
There’s an issue for this problem where you can follow the progress: https://github.com/balena-os/balena-raspberrypi/issues/361
Once this problem will be fixed, we will ping you here as well.
Does the workaround work for you?
Thanks!