Install this version:
emerge -a =kde-apps/akonadi-calendar-tools-common-26.04.3# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
ECM_HANDBOOK="true"
KDE_ORG_NAME="${PN/-common/}"
inherit ecm-common gear.kde.org
LICENSE="GPL-2 handbook? ( FDL-1.2+ )"
SLOT="0"
KEYWORDS="amd64 arm64"
RDEPEND="
!<kde-apps/calendarjanitor-24.07.90-r1
!<kde-apps/konsolekalendar-24.07.90-r1
"