Please create an EPEL 8 package. It is a requirement for python-sphinxcontrib-spelling and likely other packages.
If you don't have the cycles, I am happy to do it if you give me access (FAS: aviso).
I'm tracking this same effort in https://bugzilla.redhat.com/show_bug.cgi?id=1815830, so I'll close this as duplicate if you don't mind (I know it was reported before, but noticed late). *** This bug has been marked as a duplicate of bug 1815830 ***