pages: stop using the hpclib-hopus custom runner, prefer shared runners with...

pages: stop using the hpclib-hopus custom runner, prefer shared runners with the docker image registry.gitlab.inria.fr/solverstack/docker/guix

.gitlab-ci.yml

+default:
+  image: registry.gitlab.inria.fr/solverstack/docker/guix
+  tags: ['ci.inria.fr', 'linux']
+  interruptible: true
+  before_script:
+    - /var/guix/profiles/per-user/root/current-guix/bin/guix-daemon --build-users-group=guixbuild --disable-chroot --substitute-urls='https://bordeaux.guix.gnu.org https://ci.guix.gnu.org https://guix.bordeaux.inria.fr' &
+
 pages:
   stage: deploy
-  tags: ['guix']
-  artifacts:
-    expire_in: 1 week
-    paths:
-      - public
   script:
     - guix shell --pure bash coreutils python python-decorator python-pexpect pelican -- /bin/bash --norc ./scripts/pages.sh
+  artifacts:
+    paths: [public]