qt5-websockets

• Path: arch/maintained/qt5-websockets (new – vendored from AUR 2026-08-02 to unblock qt5-webglplugin)
• 2026-08-02: added as a submodule from AUR (https://aur.archlinux.org/qt5-websockets.git, https since AUR’s git-ssh endpoint was down for maintenance). Built+published cleanly (5.15.19+kde+r2-1, + qt5-websockets-debug), x86_64.