[mutter] (5 commits) Non-fast-forward update to branch wip/carlosg/xdg-activation

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/xdg-activation' 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:

  e90d60e... build: Add support for "staging" wayland protocols
  e0d6cf1... build: Add xdg-activation to build
  fc53e95... core: Add ::timeout signal to MetaStartupSequence
  1760ac6... wayland: Implement the xdg-activation protocol
  927a6be... ci: Build wayland-protocols

Commits added to the branch:

  6e619ba... ci: Build wayland-protocols
  4bcb664... build: Add support for "staging" wayland protocols
  0f281f2... build: Add xdg-activation to build
  989ad14... core: Add ::timeout signal to MetaStartupSequence
  d30ce15... wayland: Implement the xdg-activation protocol