fix: leave implementers to define their Debug, so removed impl Debug for dyn NodeExporter

examples/opnsense_node_exporter/src/main.rs

@@ -18,6 +18,7 @@ use harmony::{
 };
 use harmony_macros::{ip, ipv4, mac_address};
 
+#[derive(Debug)]
 struct OpnSenseTopology {
     node_exporter: Arc<dyn NodeExporter>,
 }