package/{opencv4, opencv4-contrib}: bump version to 4.11.0
Changelog:
https://github.com/opencv/opencv/wiki/OpenCV-Change-Logs#version4110
Added comments to both packages to keep the version number in sync.
Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>