Pull request cloudflare#21: Please update Docker base images to the latest tags

Merge in OXY/boring-rpk from scrat/update-images-5cb0d33b14bb9ed955c8df0a25455c1f10646182 to master

* commit 'a55301dc68dcdc5e35808597c921804cbd40b915':
  SEC-3915 - Upgrade Docker base images to get the latest security updates

Author: ProdSec Bot

cfsetup.yaml

@@ -36,7 +36,7 @@ all: &all
       - "false"
 
   template_ubuntu: &template_ubuntu
-    base-image: docker-registry.cfdata.org/stash/cf/cfsetup-images/ubuntu-bionic/master:31-0723223bf4ab
+    base-image: docker-registry.cfdata.org/stash/cf/cfsetup-images/ubuntu-bionic/master:46-eba141d3e13a
     builddeps:
       <<: [*builddeps_allow_internal, *builddeps_external]
     pre-cache: