Capture scheme and port in source user hostname

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/167690



Merged-by: James Nutt <jnutt@gitlab.com>
Approved-by: Rodrigo Tomonari <rtomonari@gitlab.com>
Approved-by: James Nutt <jnutt@gitlab.com>
Reviewed-by: Rodrigo Tomonari <rtomonari@gitlab.com>
Reviewed-by: James Nutt <jnutt@gitlab.com>
Co-authored-by: Luke Duncalfe <lduncalfe@eml.cc>