Currently, None is always supplied. This should instead report the actual language server version. The IntelliJ plugin will take advantage of this by reporting the version to the user in the UI.

server_info: Some(ServerInfo { name: "oxc".into(), version: None }),

I tried updating to the below, but it didn't seem to work. I could have just been doing something wrong though.

server_info: Some(ServerInfo { name: "oxc".into(), version: Some(env!("CARGO_PKG_VERSION").to_string()) }),