Bump volume size for memcached node

Memcached needs a larger volume size to boot up.

Issue-ID: CIMAN-33
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
Change-Id: I58a97d16074d164b1b079193978a6b0afa736c42
diff --git a/jenkins-config/clouds/openstack/cattle/ubuntu1804-memcached-4c-4g.cfg b/jenkins-config/clouds/openstack/cattle/ubuntu1804-memcached-4c-4g.cfg
index c8c65cf..cc1ec6b 100644
--- a/jenkins-config/clouds/openstack/cattle/ubuntu1804-memcached-4c-4g.cfg
+++ b/jenkins-config/clouds/openstack/cattle/ubuntu1804-memcached-4c-4g.cfg
@@ -1,4 +1,4 @@
 IMAGE_NAME=Ubuntu 18.04 - memcached -  - 120780707-7003
 LABELS=ubuntu1804-memcached-4c-4g
 HARDWARE_ID=v2-highcpu-4
-VOLUME_SIZE=20
+VOLUME_SIZE=50