Fix: Use docker build for stage jobs

Use docker build when sign artifacts is set to true

Issue-ID: CIMAN-33
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
Change-Id: If106b8b62cab89a2fcbf57fbdd2bd6f61080d2d3
diff --git a/jjb/sdnc/sdnc-oam.yaml b/jjb/sdnc/sdnc-oam.yaml
index 9961802..964417f 100644
--- a/jjb/sdnc/sdnc-oam.yaml
+++ b/jjb/sdnc/sdnc-oam.yaml
@@ -9,7 +9,7 @@
           cron: '@daily'
           mvn-params: '-Dmaven.test.skip=true'
       - gerrit-maven-stage:
-          build-node: centos8-builder-4c-4g
+          build-node: centos8-docker-8c-8g
           sign-artifacts: true
           mvn-params: '-Dmaven.test.skip=true'
           cron: ''