Please build the package for EPEL9. It is required for puppet. Happy to be a co-maintainer. Thank you!
This is probably the case already: https://bugzilla.redhat.com/show_bug.cgi?id=2038708#c2
You weren't on the list for rubygem-multi_json so I just added you with the same permissions as rubygem-concurrent-ruby. I have already requested the branch ( https://pagure.io/releng/fedora-scm-requests/issue/40705 ) but feel free to take it from there.
FEDORA-EPEL-2022-02cc809e90 has been submitted as an update to Fedora EPEL 9. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2022-02cc809e90
FEDORA-EPEL-2022-02cc809e90 has been pushed to the Fedora EPEL 9 stable repository. If problem still persists, please make note of it in this bug report.