Migrate SDC DCAE jobs

Migrate to ubuntu18.04

Change-Id: Ic5a71227c5abaefcecd29933cdd6134cce88c229
Issue-ID: CIMAN-373
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
diff --git a/jjb/sdc/sdc-microservices.yaml b/jjb/sdc/sdc-microservices.yaml
index 5fc7242..cf843d6 100644
--- a/jjb/sdc/sdc-microservices.yaml
+++ b/jjb/sdc/sdc-microservices.yaml
@@ -16,7 +16,7 @@
           build-node: centos7-builder-4c-4g
           maven-versions-plugin: true
       - gerrit-maven-docker-stage:
-          build-node: ubuntu1604-docker-v1-8c-8g
+          build-node: ubuntu1804-docker-v1-8c-8g
           maven-versions-plugin: true
           mvn-params: '-DskipTests=true'
           container-public-registry: 'nexus3.onap.org:10001'