Update .gitlab-ci.yml

.gitlab-ci.yml

-include: "https://git.autistici.org/ai3/build-deb/raw/master/ci-common.yml"
+include: "https://git.autistici.org/pipelines/debian/raw/master/common.yml"
 
 run_tests:
   stage: test
-  image: registry.git.autistici.org/ai3/docker/test/golang:master
+  image: registry.git.autistici.org/pipelines/images/test/golang:master
   script:
     - run-go-test ./...
   artifacts: