update dependencies

Dockerfile

 FROM debian:11
 
 RUN apt-get update \
-  && apt-get install -y git subversion python build-essential gawk unzip libelf-dev libz-dev libncurses-dev libssl-dev time curl wget ecdsautils \
+  && apt-get install -y git subversion python3 rsync build-essential gawk unzip libelf-dev libz-dev libncurses-dev libssl-dev time curl wget ecdsautils qemu-utils \
   && apt-get clean
 
 # gluon build fails when running as root