[pygobject] (5 commits) Non-fast-forward update to branch more-build-warnings

[Christoph Reiter <creiter src gnome org>]

The branch 'more-build-warnings' 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:

  246e84c... ci: enable -Werror
  f66dc34... Include Python.h first
  4ca17f5... pyg_pyobj_to_unichar_conv: port to new converters and add s
  e2fb880... Enable -Wnull-dereference
  951f848... Enable -Wcast-align, -Wlogical-op

Commits added to the branch:

  cf7739c... Include Python.h first
  daac243... pyg_pyobj_to_unichar_conv: port to new converters and add s
  dd1c30a... Enable -Wnull-dereference
  14f7b8b... Enable -Wcast-align, -Wlogical-op
  77afcfb... ci: enable -Werror