tests: Be less picky about remote-ls output
tests: Be less picky about remote-ls output

We don't need to insist that the ref is the first column.

Closes: #2409
Approved by: alexlarsson

flatpak/flatpak,flatpak/flatpak,matthiasclasen/flatpak,flatpak/flatpak,matthiasclasen/flatpak,matthiasclasen/flatpak,matthiasclasen/flatpak,flatpak/flatpak,flatpak/flatpak,matthiasclasen/flatpak