prefix extension values like standard attr values

Signed-off-by: minghuaw <michael.wu1107@gmail.com>

Author: minghuaw

src/binding/fe2o3_amqp/deserializer.rs

@@ -59,9 +59,6 @@ impl BinaryDeserializer for EventMessage {
                         let value = MessageAttributeValue::try_from(value)?;
                         serializer = serializer.set_extension(key, value)?;
                     }
-                } else {
-                    let value = MessageAttributeValue::try_from(value)?;
-                    serializer = serializer.set_extension(&key, value)?;
                 }
             }
         }

src/binding/fe2o3_amqp/serializer.rs

@@ -60,7 +60,7 @@ impl BinarySerializer<EventMessage> for EventMessage {
         name: &str,
         value: MessageAttributeValue,
     ) -> crate::message::Result<Self> {
-        let key = name.to_string();
+        let key = header_prefix(ATTRIBUTE_PREFIX, name);
         let value = SimpleValue::from(value);
         self.application_properties
             .get_or_insert(ApplicationProperties::default())