fix: adjust list of Docker packages to be installed

Don't try to install the obsolete docker-scan-plugin package and avoid
being overly explicit by requesting transitive dependencies which get
installed implicitly anyway.

Fixes #578.

ansible/docker/inst-docker-ubuntu.yaml

@@ -30,9 +30,6 @@
       ansible.builtin.apt:
         name:
           - docker-ce
-          - docker-ce-cli
-          - containerd.io
           - docker-buildx-plugin
-          - docker-scan-plugin
           - docker-compose-plugin
         update_cache: true