Looks like the existing Fedora 37 SRPM builds cleanly in epel9: https://copr.fedorainfracloud.org/coprs/ghjm/keychain/build/5178850/
FEDORA-EPEL-2022-1d707ab28c has been submitted as an update to Fedora EPEL 9. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2022-1d707ab28c
FEDORA-EPEL-2022-1d707ab28c has been pushed to the Fedora EPEL 9 testing repository. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2022-1d707ab28c See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-EPEL-2022-1d707ab28c has been pushed to the Fedora EPEL 9 stable repository. If problem still persists, please make note of it in this bug report.