[etherpad-web] Non-fast-forward update to branch oscp-backend

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

The branch 'oscp-backend' 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:

  e799b6d... Update to 1.8.3 (and switch to nodejs 12)
  0fb97ad... Delete file_menu_toolbar plugin
  1d9435d... Install spellcheck plugin
  882d0c1... Drop broken plugins
  0a4f7fd... Install ep_set_title_on_pad
  94df6a6... Add ep_align
  7337bea... Install ep_delete_empty_pads
  f0f1eda... Try to install etherpad deps separately
  d97e94a... Switch back to node 12
  2e90dc5... Downgrade to 1.8.0

Commits added to the branch: