I updated for Forge-1.19.4 and Forge-1.20 version.
to create pull request, please create these tags.

It seems like the mod is no longer developed, so it's unlikely new tags will be added. You could try 1.19 tag and name the title something similar to "1.19.4 & 1.20 Forge port". A lot of people are waiting for the port (including me).