games/veloren: unbreak fetch after fc35331bac02

> Fetched file size mismatch (expected 127373659, actual 127375092)

• open.png size=128 time=1631304156.000000000 \
• sha256digest=891bfe057337830685496d1762e8772358f48843540cc88e0903b293d9767cd6

+ open.png size=716 time=1631304156.000000000 \
+ sha256digest=0e2d47f0f53b84747c458d82fea9baed88635cc7b2513177e354c3cc33b5ac3d

• press.png size=128 time=1631304156.000000000 \
• sha256digest=a4f191dd96a28b8c68d566c393c6da3d07911320f2bec0dbf59f13aa15c12620

+ press.png size=195 time=1631304156.000000000 \
+ sha256digest=8e7f4a0ea7fe9a2d82763a0c36c7c084c29b8aa02964cd69103430dd093e55b9

Reported by: pkg-fallout