Dorkerfile: Set a default TZ and non-interactive install
Dorkerfile: Set a default TZ and non-interactive install

Set DEBIAN_FRONTEND to prevent waiting on user input and provide
a default timezone before package installation.

ARM-software/workload-automation,setrofim/workload-automation,setrofim/workload-automation,setrofim/workload-automation,ARM-software/workload-automation,ARM-software/workload-automation,ARM-software/workload-automation,setrofim/workload-automation