meson/render-assets.py: Update GTK4 asset paths

Paths changed in f040255

Author: jnsh

meson/render-assets.py

@@ -36,14 +36,14 @@
    'common/gtk-3.0/assets/',
    '192',
    '@2.png'],
-  ['common/gtk-4.0/4.2/assets/assets.svg',
-   'common/gtk-4.0/4.2/assets/assets.txt',
-   'common/gtk-4.0/4.2/assets/',
+  ['common/gtk-4.0/assets/assets.svg',
+   'common/gtk-4.0/assets/assets.txt',
+   'common/gtk-4.0/assets/',
    '96',
    '.png'],
-  ['common/gtk-4.0/4.2/assets/assets.svg',
-   'common/gtk-4.0/4.2/assets/assets.txt',
-   'common/gtk-4.0/4.2/assets/',
+  ['common/gtk-4.0/assets/assets.svg',
+   'common/gtk-4.0/assets/assets.txt',
+   'common/gtk-4.0/assets/',
    '192',
    '@2.png'],
   ['common/xfwm4/dark/assets.svg',