[simple-scan] (3 commits) Non-fast-forward update to branch cherry-pick-c23a1da8

[Bartosz <bkosiorek src gnome org>]

The branch 'cherry-pick-c23a1da8' 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:

  9b207ec... During first run create page with correct page size.

Commits added to the branch:

  5531029... Fix build on Ubuntu 20.04 (*)
  02dca7d... Don't interrupt scanning if the device is busy. (*)
  e312f75... During first run create page with correct page size.

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