no need to use build dependency of kquickimageeditor
kquickimageeditor now builds for qt5 and qt6, but they did not create separate cmake package names for each. It is only needed at runtime though, which we handle in packaging, so this avoids the devel dep.
see: https://src.fedoraproject.org/rpms/kaidan/c/3bfaa201c272f2275c9d3361fdce3cb6528b1b77?branch=rawhide