Fix clusters_controller_spec (#42643)

spec/controllers/projects/clusters_controller_spec.rb

@@ -92,8 +92,8 @@ describe Projects::ClustersController do
         expect(response).to match_response_schema('cluster_status')
       end
 
-      it 'invokes sync_details on each application' do
-        expect_any_instance_of(Clusters::Applications::Ingress).to receive(:sync_details)
+      it 'invokes schedule_status_update on each application' do
+        expect_any_instance_of(Clusters::Applications::Ingress).to receive(:schedule_status_update)
 
         go
       end