fix: add extended model

Signed-off-by: Vladislav Sukhin <vladislav@kubeshop.io>

pkg/api/v1/testkube/model_test_workflow_step_parallel_extended.go

@@ -0,0 +1,16 @@
+package testkube
+
+func (w *TestWorkflowStepParallel) ContainsExecuteAction() bool {
+	if w.Execute != nil && (len(w.Execute.Tests) != 0 || len(w.Execute.Workflows) != 0) {
+		return true
+	}
+
+	steps := append(w.Setup, append(w.Steps, w.After...)...)
+	for _, step := range steps {
+		if step.ContainsExecuteAction() {
+			return true
+		}
+	}
+
+	return false
+}