Improve setting facter report path

machines/warwick/default.nix

@@ -1,11 +1,11 @@
 {
   machines.warwick = {
-    facterReportPath = ./facter.json;
-
     nixosModule = {inputs, ...}: {
       imports = [inputs.nixos-hardware.nixosModules.raspberry-pi-4];
 
       config = {
+        facter.reportPath = ./facter.json;
+
         lab = {
           storage.profile = "pi";
           monitoring.server.enable = true;