Update Dockerfile

Author: lexuzieel

Dockerfile

@@ -2,6 +2,9 @@ FROM ubuntu:22.04
 
 RUN apt-get update && apt-get clean
 
+ARG DEBIAN_FRONTEND=noninteractive
+ENV TZ=Etc/UTC
+
 # Install window manager and basic utilities
 RUN apt-get install -y \
     x11vnc \