!!! Multiple package instances within a single package slot have been pulled !!! into the dependency graph, resulting in a slot conflict: dev-python/resolvelib:0 (dev-python/resolvelib-0.8.1:0/0::gentoo, ebuild scheduled for merge) USE="-test" ABI_X86="64" PYTHON_TARGETS="pypy3 python3_10 python3_8 python3_9" pulled in by =dev-python/resolvelib-0.8.1 (Argument) (dev-python/resolvelib-0.5.4:0/0::gentoo, installed) USE="" ABI_X86="64" PYTHON_TARGETS="python3_10 python3_8 python3_9" pulled in by <dev-python/resolvelib-0.6.0[python_targets_python3_8(-),python_targets_python3_9(-),python_targets_python3_10(-)] required by (app-admin/ansible-base-2.13.0-1:0/0::gentoo, installed) USE="-test" ABI_X86="64" PYTHON_TARGETS="python3_10 python3_8 python3_9" ^ ^^^^^
what do you want me to do about it? https://github.com/ansible/ansible/blob/stable-2.13/requirements.txt#L13
Perhaps you could start by testing it with the newer version. Or at least reporting the problem upstream.
searching the ansible bug list shows that they have work ongoing to update resolvelib https://github.com/ansible/ansible/issues/74569
This now became more important, as new version of dev-python/pdm requires new resolvelib.