[sushi] (4 commits) Non-fast-forward update to branch alatiera/ci

[Jordan Petridis <jpetridis src gnome org>]

The branch 'alatiera/ci' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  b087d8f... Add a Flatpak CI setup
  6143be7... flatpak: Remove global buildflags
  f5239ab... flatpak: stop bundling sourceview4
  66b9b73... flatpak: Update poppler and evince

Commits added to the branch:

  56689f3... Add a Flatpak CI setup
  d42081c... flatpak: Remove global buildflags
  b058527... flatpak: stop bundling sourceview4
  abbfc0f... flatpak: Update poppler and evince