graphics/wallust: Update to 3.5.2

Changelog:

• https://codeberg.org/explosion-mental/wallust/releases/tag/3.5.0
• https://codeberg.org/explosion-mental/wallust/releases/tag/3.5.1
• https://codeberg.org/explosion-mental/wallust/releases/tag/3.5.2

Reported by: Repology