Disable failing goals/default.nix

Disabling failing packages until I can get a working CI build.

ci/scripts/build-socrates.sh

@@ -1,7 +1,8 @@
 set -euo pipefail
 
-nix-build /home/wpcarro/nixpkgs/nixos \
+nix-build '<nixpkgs/nixos>' \
   -I briefcase="$(pwd)" \
+  -I nixpkgs=/home/wpcarro/nixpkgs-channels \
   -I nixos-config=nixos/socrates/default.nix \
   -A system \
   --show-trace