Update appc to ubuntu 1804

Change-Id: I9e1b2234c1e3782f511df48118d92319f13038ed
Signed-off-by: Patrick Brady <patrick.brady@att.com>
Issue-ID: APPC-1816
diff --git a/jjb/appc/appc-deployment.yaml b/jjb/appc/appc-deployment.yaml
index ee14b23..4fdbb66 100644
--- a/jjb/appc/appc-deployment.yaml
+++ b/jjb/appc/appc-deployment.yaml
@@ -17,7 +17,7 @@
     archive-artifacts: ''
     docker-pom: 'pom.xml'
     mvn-profile: docker
-    build-node: ubuntu1604-builder-4c-4g
+    build-node: ubuntu1804-builder-4c-4g
 
 - project:
     name: appc-deployment-docker
@@ -28,7 +28,7 @@
       - 'docker-version-java-daily':
           mvn-params: '-Dmaven.test.skip=true'
       - gerrit-maven-docker-stage:
-          build-node: ubuntu1604-docker-8c-8g
+          build-node: ubuntu1804-docker-8c-8g
           mvn-params: '-Dmaven.test.skip=true -P docker'
           maven-versions-plugin: true
           mvn-opts: "-Xmx4000m -XX:MaxPermSize=256m"
@@ -45,7 +45,7 @@
     archive-artifacts: ''
     docker-pom: 'pom.xml'
     mvn-profile: docker
-    build-node: ubuntu1604-docker-8c-8g
+    build-node: ubuntu1804-docker-8c-8g
 
 #- project:
 #    name: appc-deployment-arm64-docker