Fix specs that were masked by returning 204 for wrong reasons

spec/controllers/admin/clusters/applications_controller_spec.rb

@@ -101,7 +101,7 @@ describe Admin::Clusters::ApplicationsController do
 
           is_expected.to have_http_status(:no_content)
 
-          expect(cluster.application_cert_manager).to be_scheduled
+          expect(cluster.reload.application_cert_manager).to be_scheduled
         end
       end
 

spec/controllers/groups/clusters/applications_controller_spec.rb

@@ -109,7 +109,7 @@ describe Groups::Clusters::ApplicationsController do
 
           is_expected.to have_http_status(:no_content)
 
-          expect(cluster.application_cert_manager).to be_scheduled
+          expect(cluster.reload.application_cert_manager).to be_scheduled
         end
       end