feat: docker pull back image

Jenkinsfile

@@ -83,6 +83,26 @@ pipeline {
                 }
             }
         }
+        stage('E2E') {
+            when {
+                expression { !PROTECTED_BRANCH }
+            }
+            environment {
+                CREDENTIALS = credentials('docker-registry')
+                IMAGE = "$REGISTRY/salix-back"
+            }
+            steps {
+                sh 'docker pull $IMAGE:$GIT_BRANCH'
+            }
+              post {
+                always {
+                    junit(
+                        testResults: 'junitresults.xml',
+                        allowEmptyResults: true
+                    )
+                }
+            }
+        }
         stage('Build') {
             when {
                 expression { PROTECTED_BRANCH }