Build recursive.allDerivations in CI

Author: enobayram

.github/workflows/nix.yml

@@ -40,3 +40,6 @@ jobs:
       run: |
         echo Building the project and its devShell
         nix build --log-lines 500 --show-trace
+
+        echo Build the recursive output
+        nix build .#recursive.allDerivations --accept-flake-config --log-lines 500 --show-trace