[pygobject] (5 commits) Non-fast-forward update to branch wip/msvc

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'wip/msvc' 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:

  00f6e43... gtk-demo.py: Allow running on Windows/x64
  615019e... Support MSVC builds of PyGObject-3.x

Commits added to the branch:

  6695931... Fix new PEP8 errors (*)
  d005df9... Disable -Werror=missing-prototypes (*)
  ebc245c... overrides: Update for Gdk-4.0 and Gtk+-4.0 (*)
  61d60d9... gtk-demo.py: Allow running on Windows/x64
  5f07fdb... Support MSVC builds of PyGObject-3.x

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