Use new CI templates

.gitlab-ci.yml

 include:
   - "https://git.autistici.org/pipelines/containers/raw/master/common.yml"
-  - "https://git.autistici.org/ai3/docker/test/golang/raw/master/ci.yml"
+  - "https://git.autistici.org/pipelines/images/test/golang/raw/master/ci.yml"
 
 ctest-http:
-  image: registry.git.autistici.org/ai3/docker/test/float-like-podman:master
+  image: registry.git.autistici.org/pipelines/images/test/float-podman-runner:master
   stage: container-test
   tags: [podman]
   variables: