Update responses::MessagingProtocol for rabbitmq/rabbitmq-server#14256

Author: michaelklishin

CHANGELOG.md

@@ -2,7 +2,10 @@
 
 ## v0.44.0 (in development)
 
-No changes yet.
+### Enhancements
+
+ * `responses::MessagingProtocol` was updated to include a new variant, `MessagingProtocol::Local`,
+    that represents a "protocol" used by local shovels in RabbitMQ 4.2.0 and later.
 
 
 ## v0.43.0 (Aug 19, 2025)

src/responses.rs

@@ -2254,13 +2254,16 @@ pub enum MessagingProtocol {
     Amqp091,
     #[serde(rename = "amqp10")]
     Amqp10,
+    #[serde(rename = "local")]
+    Local,
 }
 
 impl fmt::Display for MessagingProtocol {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
             MessagingProtocol::Amqp091 => write!(f, "AMQP 0-9-1"),
             MessagingProtocol::Amqp10 => write!(f, "AMQP 1.0"),
+            MessagingProtocol::Local => write!(f, "Local"),
         }
     }
 }
@@ -2270,6 +2273,7 @@ impl From<String> for MessagingProtocol {
         match value.as_str() {
             "amqp091" => Self::Amqp091,
             "amqp10" => Self::Amqp10,
+            "local" => Self::Local,
             _ => Self::Amqp10,
         }
     }
@@ -2280,6 +2284,7 @@ impl From<MessagingProtocol> for String {
         match value {
             MessagingProtocol::Amqp091 => "amqp091".to_owned(),
             MessagingProtocol::Amqp10 => "amqp10".to_owned(),
+            MessagingProtocol::Local => "local".to_owned(),
         }
     }
 }