Update docker and builder nodes

Update to fetch Python 3.9 support

Issue-ID: CIMAN-33
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
Change-Id: I95160bbc2c11e71e8727c30f43574776637f7fbb
diff --git a/jenkins-config/clouds/openstack/cattle/ubuntu1804-builder-4c-4g.cfg b/jenkins-config/clouds/openstack/cattle/ubuntu1804-builder-4c-4g.cfg
index a8d9328..7b095be 100644
--- a/jenkins-config/clouds/openstack/cattle/ubuntu1804-builder-4c-4g.cfg
+++ b/jenkins-config/clouds/openstack/cattle/ubuntu1804-builder-4c-4g.cfg
@@ -1,4 +1,4 @@
-IMAGE_NAME=ZZCI - Ubuntu 18.04 - builder - x86_64 - 20200720-175313.316
+IMAGE_NAME=ZZCI - Ubuntu 18.04 - builder - x86_64 - 20210129-195204.476
 LABELS=ubuntu1804-builder-4c-4g
 HARDWARE_ID=v2-highcpu-4
 VOLUME_SIZE=20