refactor: Update apt-cacher setup script to use IP address instead of hostname for the proxy server

apt-cacher/setup.sh

@@ -1,2 +1,2 @@
 #!/bin/bash
-echo 'Acquire::http { Proxy "http://apt-cacher.local:3142"; }' | sudo tee -a /etc/apt/apt.conf.d/proxy
+echo 'Acquire::http { Proxy "http://192.168.179.107:3142"; }' | sudo tee -a /etc/apt/apt.conf.d/proxy