KDE: Update KDE Frameworks 6 to 6.19.0
Announcement: https://kde.org/announcements/frameworks/6/6.19.0/
Ports changes:
devel/kf6-extra-cmake-modules:
- Backport upstream patch to fix regression for KF5 ports
graphics/kf6-kimageformats:
- Remove stale patch
PR: 290165
Exp-run by: antoine