Update builder nodes

JonathonF python 3.6 ppa is no longer public

Change-Id: Ic1ffd146282d41c0c6c60a89ddf95f8594448ed1
Issue-ID: CIMAN-359
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
diff --git a/jenkins-config/clouds/openstack/cattle/ubuntu1604-builder-4c-4g.cfg b/jenkins-config/clouds/openstack/cattle/ubuntu1604-builder-4c-4g.cfg
index 1180443..2bf93ca 100644
--- a/jenkins-config/clouds/openstack/cattle/ubuntu1604-builder-4c-4g.cfg
+++ b/jenkins-config/clouds/openstack/cattle/ubuntu1604-builder-4c-4g.cfg
@@ -1,3 +1,3 @@
-IMAGE_NAME=ZZCI - Ubuntu 16.04 - builder - x86_64 - 20191007-191710.199
+IMAGE_NAME=ZZCI - Ubuntu 16.04 - builder - x86_64 - 20200204-095421.898
 LABELS=ubuntu1604-builder-4c-4g
 HARDWARE_ID=v2-highcpu-4