- New version of Alpine.
- Remove juxr, Bats now supports outputing the junit xml format.
- Sim package selection.

- Alpine 3.13.
- Silence a hadolint warning.
- Fetch juxr from a build stage image instead of downloading.
- Full url from fetching from Docker Hub (as opposed to my registry).

There's no need for the daemon as well.

For ssh-ca and ssl-ca.

Needed in some cases.

The templates were changed and this reflects the changes:
- No need to set the order of the stages, pre-commit runs  in .pre now.
- Rename the Docker jobs for clarity and avoiding more common names.

- Update hooks.
- Add hook to validate .gitlab-ci.yml.

Because there are now scheduled CI runs.

Replace cgit with GitLab.