Function resolve_forge_version 

pub async fn resolve_forge_version(
    mc_version: &str,
    loader_version: &str,
) -> Result<String>

Map a bare Forge version (47.2.0) to the full string used by the Forge version list (1.20.1-47.2.0, or legacy forms like 1.7.10-10.13.4.1614-1.7.10).