[FIXED] Docker Image with bad mirror

[MedoX71T]

Your build is failing because apt-get is trying to fetch a few packages from the mirror1.sox.rs Kali mirror, which is timing out. That’s a mirror problem, not a package problem:

• Errors like Unable to connect to mirror1.sox.rs:80 and E: Unable to fetch some archives show the mirror is down/unreachable during the image build.
• Docker then aborts that RUN apt-get install ... layer with exit code 100.

To make the build reliable, I updated the Dockerfile to force Kali to use a single, stable mirror (kali.download) instead of relying on the default redirector that might pick broken mirrors.