[tracker] (2 commits) Non-fast-forward update to branch sam/slow-tests

[Sam Thursfield <sthursfield src gnome org>]

The branch 'sam/slow-tests' 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:

  6f5c896... Increase timeouts for some tests which are failing in CI

Commits added to the branch:

  6c537a1... functional-tests: Remove 12-transactions test
  a4571aa... tests: Mark file-notifier-test as needing a higher timeout