Fix: Move CCSDK/SDNC release jobs to C7

There is an issue detected in C8 at the time of signing the
release tag which is still under investigation.

Use C7 for now, this will not affect the artifacts since these
were built in the stage job with C8. This job exclusively releases
the artifacts without rebuilding them.

Issue-ID: CIMAN-33
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
Change-Id: Id2eab9da35fb44f1889bf4a10ef2acf3c1f919e6
diff --git a/jjb/ccsdk/distribution.yaml b/jjb/ccsdk/distribution.yaml
index 8011c4b..95f2294 100644
--- a/jjb/ccsdk/distribution.yaml
+++ b/jjb/ccsdk/distribution.yaml
@@ -23,7 +23,7 @@
           maven-versions-plugin: true
           cron: '@daily'
       - '{project-name}-gerrit-release-jobs':
-          build-node: centos8-docker-8c-8g
+          build-node: centos7-docker-2c-8g
 
     project: 'ccsdk/distribution'
     stream: