Show correct edition for EE free
What does this MR do?
Sets the edition
field of the usage ping to 'EE Free' when using EE without a license.
Also, including whether or not the license is a trial or not in the usage ping.
Are there points in the code the reviewer needs to double check?
Don't think so, but this does need a version app MR too: https://dev.gitlab.org/gitlab/version-gitlab-com/merge_requests/118
Why was this MR needed?
It makes it easier to work with the usage ping data.
What are the relevant issue numbers?
Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/41092.