x11-toolkits/wlroots019: update to 0.19.0

Fixes WLR_RENDERER=vulkan on KMS console.

Changes: https://gitlab.freedesktop.org/wlroots/wlroots/-/compare/0.19.0-rc3...0.19.0
Changes: https://gitlab.freedesktop.org/wlroots/wlroots/-/releases/0.19.0
Reported by: GitLab (notify releases)
PR: 286311