Update Jenkinsfile

Jenkinsfile

@@ -14,12 +14,15 @@ properties([
       ])
 ])
 
-pipeline {
+node {
-    agent any
-    stages {
     stage('Checkout') {
         checkout scm
     }
+}
+
+pipeline {
+    agent any
+    stages {
         stage('test') {
             steps {
                 script {