[durruti] make durruti microvm

Networking still needs to be done but the vm boots using ```nix run .\#nixosConfigurations.durruti.config.microvm.declaredRunner```

machines/configuration.nix

@@ -40,6 +40,13 @@ let
     }
   ];
   defaultModules = baseModules;
+
+  defaultMicroVMModules = [
+    inputs.microvm.nixosModules.microvm
+    {
+      microvm.hypervisor = "qemu";
+    }
+  ] ++ defaultModules;
 in
 {
   louise = nixosSystem {
@@ -53,7 +60,7 @@ in
   durruti = nixosSystem {
     system = "x86_64-linux";
     specialArgs.inputs = inputs;
-    modules = defaultModules ++ [
+    modules = defaultMicroVMModules ++ [
       ./durruti/configuration.nix
     ];
   };