fix: only build supported systems in CI

Author: RGBCube

flake.nix

@@ -108,5 +108,9 @@
       |> listToAttrs;
   in hostsByType // hostConfigs // {
     inherit lib;
+
+    herculesCI = { ... }: {
+      ciSystems = [ "aarch64-linux" "x86_64-linux" ];
+    };
   };
 }