Fix: only display error about blackboard if compiled in debug mode

src/rust/uisp_integration/src/blackboard.rs

@@ -38,6 +38,7 @@ pub async fn blackboard_blob<T: Serialize>(key: &str, value: T) -> anyhow::Resul
             blob: chunk.to_vec(),
         }];
         let err = lqos_bus::bus_request(req).await;
+        #[cfg(debug_assertions)]
         if let Err(e) = err {
             tracing::error!("Error writing to blackboard (only an error if lqosd is running): {e:?}");
         }