[pitivi] (4 commits) Non-fast-forward update to branch thiblahute/sdk3.30

[Thibault Saunier <tsaunier src gnome org>]

The branch 'thiblahute/sdk3.30' 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:

  259469f... ci: docker: Build against GNOME 3.30
  7372f91... build: Update flatpak SDK and deps
  92fab20... WIP
  faa7c9d... ci: Add a target to update our flatpak repository
  2f8577b... flatpak: Allow '/' in branch names
  56ddf05... WIP

Commits added to the branch:

  9c07148... flatpak: Allow '/' in branch names
  8161441... ci: docker: Build against GNOME 3.30
  f541600... build: Update flatpak SDK and deps
  e09d6ef... ci: Add a target to update our flatpak repository