[gnome-build-meta] (15 commits) Non-fast-forward update to branch sam/tracker-3

[Sam Thursfield <sthursfield src gnome org>]

The branch 'sam/tracker-3' 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:

  442e508... core-deps:Add tracker-3 and tracker-miners-3 elements
  2ed1a16... core-deps: Add tracker-3 and tracker-miners-3 elements

Commits added to the branch:

  2ab66ff... Revert "Allow testing beta versions of the OpenH264 extensi (*)
  bbfddc4... Revert "Switch to test sidebranch of freedesktop-sdk and op (*)
  f3aeae6... core-deps/glade-base.bst -> core-deps/glade.bst (*)
  81ce080... core-deps/libportal.bst: use tarball (*)
  a212edf... core-deps/xdg-sound-theme.bst: use tarball (*)
  c5ac8bf... sdk/appstream-glib.bst: drop gtk dependency (*)
  3d8ba4a... sdk/gtk+-3.bst: depend on cantarell-fonts (*)
  c6ddf35... Disable the default root password (*)
  b55ead6... Build gdm with meson (*)
  d8df9e8... elements/core/gdm.bst: Be explicit about enable plymouth (*)
  77c171e... Update freedesktop-sdk.bst to 19.08.10 (*)
  5270084... .gitlab-ci.yml: Use buildstream 1.4.2 (*)
  cb8e9d6... Use libical from Freedesktop SDK (*)
  518a1f5... Use xmlto from freedesktop-sdk (*)
  3b49d0d... core-deps: Add tracker-3 and tracker-miners-3 elements

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