Proxy variables

[bugmaker254]

🌟 Briefly describe the feature

Add support for var_http_proxy and var_http_no_proxy

📝 Detailed description

In case if inet behind proxy server, not possible correct finish install proccess.
So purpose add support proxy variables to config

💡 apt-get update failed (deb.debian.org).
ℹ️ Probing alternate mirrors (this can take 1-2 minutes on network issues)
Mirror fallback for distro: debian
Phase 1/3: Scanning global mirrors for reachability...
No reachable global mirrors found
Phase 2/3: Trying primary mirror...
Phase 3/3: Scanning regional mirrors...
No reachable regional mirrors found
💡 Multiple mirrors failed (possible CDN synchronization issue).
💡 Find Debian mirrors at: https://www.debian.org/mirror/list
Enter a mirror hostname (or 'skip' to abort):

💡 Why is this useful?

Because it will allow you to use scripts to use a proxy server