use the better base image

.circleci/config.yml

@@ -2,15 +2,11 @@ version: 2
 jobs:
   build:
     docker:
-      - image: debian:stretch
+      - image: eyedeekay/builders
 
     steps:
       - checkout
 
-      - run:
-          name: Dependencies
-          command: apt-get update && apt-get -yq install devscripts build-essential lintian zip make
-
       - run:
           name: Build
           command: make zip deb