Description of problem: Please branch and build perl-Config-Grammar in epel8. If you do not wish to maintain perl-Config-Grammar in epel8, or do not think you will be able to do this in a timely manner, I would be happy to be a co-maintainer of the package. [I have tested that the package will build in EPEL-8 and it currently builds in mock without errors.]
https://pagure.io/releng/fedora-scm-requests/issue/37508
FEDORA-EPEL-2021-e94ada710f has been submitted as an update to Fedora EPEL 8. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2021-e94ada710f
FEDORA-EPEL-2021-e94ada710f has been pushed to the Fedora EPEL 8 testing repository. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2021-e94ada710f See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-EPEL-2021-e94ada710f has been pushed to the Fedora EPEL 8 stable repository. If problem still persists, please make note of it in this bug report.