[gnome-tweaks] Non-fast-forward update to branch wip/christopherdavis/python3-deprecation-fix

[Evan Welsh <ewlsh src gnome org>]

The branch 'wip/christopherdavis/python3-deprecation-fix' 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:

  f0deae5... build: Use python module instead of deprecated python3 modu

Commits added to the branch:

  1bec830... build: Use python module instead of deprecated python3 modu