Fix rparse to rcore binding for afen

[satk0]

Checklist

• [x] Closing issues: https://github.com/satk0/r2-afen-plugin/issues/1
• [x] Mark this if you consider it ready to merge
• [ ] I've added tests (optional)
• [ ] I wrote some documentation

Description

[satk0]

Hopefully, now is cool :smile: