[mutter] (13 commits) Non-fast-forward update to branch wip/carlosg/rt-scheduler

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/rt-scheduler' 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:

  bfb78e9... core: Drop all capabilities before running the main loop
  6a80715... backends/native: Add rt-scheduler experimental key to set R

Commits added to the branch:

  5480a3f... Update POTFILES.in (*)
  ac15a8a... Updated Spanish translation (*)
  ae6d9e3... backends: Fallback to builtin panel for devices where all h (*)
  3468144... ci: Build GNOME Shell at the test stage (*)
  160d2d5... ci: Install to Mutter and GNOME Shell to /usr (*)
  da1e917... ci: Add GNOME Shell dependencies to Dockerfile (*)
  b4d973f... ci: Update gsettings-desktop-schema URLs (*)
  3ffc4f8... ci: Use mutter image to build GNOME Shell (*)
  6a89e79... Update Friulian translation (*)
  bf8bc65... core: Check environment variables before giving to GAppLaun (*)
  454651f... Update Indonesian translation (*)
  0e4fdf3... core: Drop all capabilities before running the main loop
  3593710... backends/native: Add rt-scheduler experimental key to set R

(*) This commit already existed in another branch; no separate mail sent