missing / move rtree dependency in gentoo build file.

[grandjeanlab]

trying to emerge samri with the following, in a container, using gentoo stage 3 docker image as base:

        emerge --sync
        
        emerge dev-vcs/git

        emerge --noreplace --verbose eselect-repository
        eselect repository enable science
        emerge --sync

        echo 'ACCEPT_LICENSE="*"' >> /etc/portage/make.conf
        echo 'ACCEPT_KEYWORDS="~amd64"' >> /etc/portage/make.conf
        echo "*/* PYTHON_TARGETS: python3_10" >> /etc/portage/package.use/gen

        emerge --autounmask=y --autounmask-write  --autounmask-continue sci-biology/samri

i get the following

emerge: there are no ebuilds to satisfy ">=sci-libs/rtree-0.8.3[python_targets_python3_10(-)?,python_targets_python3_11(-)?]".

a quick look at https://github.com/gentoo/sci/tree/master/sci-libs shows rtree is miising, but newer version is available at dev-python/rtree