Add container build jpl

Change-Id: I69ebcbc99938412de71f389791ebe240368ff02b
Signed-off-by: Saheer Babu <saheer.babu@arm.com>
diff --git a/ci/container-build.jpl b/ci/container-build.jpl
index a3be6b9..1f3f319 100644
--- a/ci/container-build.jpl
+++ b/ci/container-build.jpl
@@ -35,12 +35,14 @@
 
   stages {
         stage('Build and Push Multiple Images') {
-            container('buildah') {
-                checkout scm
-                sh "env"
-                sh "ci-dockerfiles-deployment/build-version.sh"
-                sh "ci-dockerfiles-deployment/builders.sh"
-                sh "ci-dockerfiles-deployment/report.sh"
+            steps {
+                container('buildah') {
+                    checkout scm
+                    sh "env"
+                    sh "ci-dockerfiles-deployment/build-version.sh"
+                    sh "ci-dockerfiles-deployment/builders.sh"
+                    sh "ci-dockerfiles-deployment/report.sh"
+                }
             }
         }
     }