fixup! fixup! Passing binary payloads to flows

Author: didier-wenzek

crates/extensions/tedge_flows/src/flow.rs

@@ -258,8 +258,8 @@ impl std::fmt::Display for Message {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         write!(f, "[{}] ", self.topic)?;
         match &self.payload_str() {
-            Some(str) => str.fmt(f),
-            None => format!("{:?}", self.payload).fmt(f),
+            Some(str) => write!(f, "{str}"),
+            None => write!(f, "{:?}", self.payload),
         }
     }
 }