Add --no-out-link to ci/scripts

I don't need the ./result symlinks...

ci/scripts/build-briefcase.sh

@@ -2,5 +2,5 @@ set -euo pipefail
 
 nix-build . \
   -I briefcase="$(pwd)" \
-  -I nixpkgs=/var/lib/buildkite-agent-socrates/nixpkgs-channels \
+  --no-out-link \
   --show-trace

ci/scripts/build-socrates.sh

@@ -5,4 +5,5 @@ nix-build '<nixpkgs/nixos>' \
   -I nixpkgs=/var/lib/buildkite-agent-socrates/nixpkgs-channels \
   -I nixos-config=nixos/socrates/default.nix \
   -A system \
+  --no-out-link \
   --show-trace