#1135024 openrgb: Update to latest version and switch to Qt 6

#1135024#5
Date:
2026-04-26 21:40:49 UTC
From:
To:
Dear Maintainer,

Please update openrgb to latest version and also switch to Qt 6, since Qt 5 is
becoming obsolete
and will eventually be dropped from all distros so better to be ready for it
before it happens.

OpenRGB supports building with Qt 6.
See: https://gitlab.com/CalcProgrammer1/OpenRGB/-/work_items/4936

Thank you.