Thanks for reporting, kdepim-apps-libs is already removed from the repo, I did rebuild all that used to require it, grantlee-editor included, but failed to actually remove the depend.....
https://github.com/KaOSx/apps/commit/8713111dbc86c889cac69a691d68d698701ecaf4
EDIT:
Rebuild is up, you can try it now with:
sudo pacman -U https://repo.kaosx.us/build/grantlee-editor-20.12.0-2-x86_64.pkg.tar.zst