[mutter] Non-fast-forward update to branch wip/smcv/cogl-really-skip

[Simon McVittie <smcv src gnome org>]

The branch 'wip/smcv/cogl-really-skip' 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:

  0103276... cogl tests: Normally skip tests that are not expected to su

Commits added to the branch:

  f5aca68... cogl tests: Normally skip tests that are not expected to su