fix: get target default system-features

Author: sabify

src/nixos-anywhere.sh

@@ -948,7 +948,7 @@ SSH
  if [[ -n ${flake} ]]; then
  system_features=$(nix --extra-experimental-features 'nix-command flakes' eval --apply toString "${flake}"#"${flakeAttr}".nix.settings.system-features)
  if [[ -z ${system_features} ]]; then
- system_features=$(nix config show system-features)
+ system_features=$(runSshNoTty -o ConnectTimeout=10 nix --extra-experimental-features 'nix-command' config show system-features)
  fi
 
  platform_arch=$(nix --extra-experimental-features 'nix-command flakes' eval --apply 'x: toString (x.nixpkgs.hostPlatform.gcc.arch or "")' "${flake}#${flakeAttr}")