Ubuntu 20.04 doesn't work without this patch

The problem was described here:

https://github.com/trezor/blockbook/issues/568

build/docker/bin/Dockerfile

@@ -1,6 +1,7 @@
 # initialize from the image defined by BASE_IMAGE
 ARG BASE_IMAGE
 FROM $BASE_IMAGE
+ARG DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update && \
     apt-get upgrade -y && \