[gtk] (6 commits) Non-fast-forward update to branch wip/otte/reftests

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/reftests' 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:

  d995287... reftests: Fox background-size-zero test
  b01390a... wip: Run reftests on CI

Commits added to the branch:

  10090fb... reftests: Fix background-size-zero test
  a7fc8db... reftests: Fix css-match-class test
  7548185... reftests: Fix css-currentcolor-alpha.ui test
  9280450... reftests: Delete removed tests from testdata
  ee843d5... reftests: Fix border-image-excess-size.ui test
  b8d0aa4... wip: Run reftests on CI