Update procedure for running Puppet once with ssh

[aneta-petrova]

The interface no longer references "SSH Default" but "Script Default". We should update all the affected procedures.

.. Assign the `Run Puppet Once {endash} Script Default` job template.

Originally posted by @maximiliankolb in #4189 (comment)

[aneta-petrova]

Also, a step seems to be missing: #4189 (comment)