Upgrade Iroh native backend foundation

crates/geth-cli/src/lib.rs

@@ -1534,10 +1534,12 @@ fn print_response(response: ControlResponse, json: bool) -> Result<()> {
                     backend.target_version,
                     backend.status
                 );
-                println!(
-                    "native backend {} blocker: {}",
-                    backend.module, backend.blocker
-                );
+                if !backend.blocker.is_empty() {
+                    println!(
+                        "native backend {} note: {}",
+                        backend.module, backend.blocker
+                    );
+                }
             }
         }
         ControlResponse::NodeId(node) => {