chore: use golang-builder:0.7.0

Author: philmtd

.circleci/config.yml

@@ -2,7 +2,7 @@ version: 2.1
 jobs:
   build:
     docker:
-      - image: docker.subshell.com/builder/golang-builder:0.6.0
+      - image: docker.subshell.com/builder/golang-builder:0.7.0
         auth:
           username: $DOCKER_USERNAME
           password: $DOCKER_PASSWORD