Populate new fields in `aya_build::Package`

{{project-name}}/build.rs

@@ -21,6 +21,7 @@ fn main() -> anyhow::Result<()> {
             .parent()
             .ok_or_else(|| anyhow!("no parent for {manifest_path}"))?
             .as_str(),
+        ..Default::default()
     };
     aya_build::build_ebpf([ebpf_package], Toolchain::default())
 }