gdk-pixbuf fails to compile in CI

[nazar-pc]

Looks like the latest version was pulled in my project in CI and it now doesn't compile:

Found ninja-1.12.1 at C:\gtk-build\tools\ninja-1.12.1\ninja.EXE
ninja: fatal: ReadFile: The handle is invalid.
[1/156] Generating glib marshaller header gdk-pixbuf/gdk-pixbuf-marshal_h

FAILED: gdk-pixbuf/gdk-pixbuf-marshal.h 

"C:\Program" "Files (x86)/pipx/venvs/gvsbuild/Scripts/python.exe" "C:/gtk-build/gtk/x64/release/bin/../bin/glib-genmarshal" "--quiet" "--prefix" "_gdk_pixbuf_marshal" "--output" "gdk-pixbuf/gdk-pixbuf-marshal.h" "--header" "../gdk-pixbuf/gdk-pixbuf-marshal.list" "--pragma-once"
CreateProcess failed: The system cannot find the file specified.

Looking at python path, it doesn't seem to be handling white spaces correctly.

CI logs: https://github.com/autonomys/space-acres/actions/runs/10834949725/job/30065354680?pr=294#step:6:16918

[nazar-pc]

2024.8.1 works fine, this is a regression in 2024.9.0