Merge pull request 'move nixops4Deployment class' (#6) from kiara/Fediversity:data-model-fix-root-class into deployment-data-model-with-tests

Reviewed-on: #6
Reviewed-by: Valentin Gagarin <valentin.gagarin@tweag.io>

deployment/data-model.nix

@@ -31,6 +31,7 @@ let
       inputs.nixops4.modules.nixops4Deployment.default
 
       {
+        _class = "nixops4Deployment";
         _module.args = {
           resourceProviderSystem = builtins.currentSystem;
           resources = { };
@@ -40,8 +41,6 @@ let
   };
 in
 {
-  _class = "nixops4Deployment";
-
   options = {
     resources = mkOption {
       description = "Collection of deployment resources that can be required by applications and policed by hosting providers";