Please branch and build aspell-sk in epel9. If you do not wish to maintain aspell-sk in epel9, or do not think you will be able to do this in a timely manner, the EPEL Packagers SIG would be happy to be a co-maintainer of the package; please add the epel-packagers-sig group through https://src.fedoraproject.org/rpms/aspell-sk/addgroup and grant it commit access, or collaborator access on epel* branches.
aspell-sk-2.02-7.el9 is a part of epel9 from dec 2021. Let me know, if you have any specific problems. https://src.fedoraproject.org/rpms/aspell-sk https://koji.fedoraproject.org/koji/buildinfo?buildID=1870676