Add Changelog entry for decodable fix from 10.0.0-beta.1
Add Changelog entry for decodable fix from 10.0.0-beta.1

justinmakaila/Moya,justinmakaila/Moya,justinmakaila/Moya,Moya/Moya,Moya/Moya,ashfurrow/Moya,ashfurrow/Moya,Moya/Moya