Fix v22 enumeratesigners

The v22 help is not correct, it gives incorrect field names. They are
correct in v23.

Fix the v22 struct to match the correct names in v23.

Author: jamillambert

types/src/v22/signer.rs

@@ -11,15 +11,17 @@ use serde::{Deserialize, Serialize};
 /// > Returns a list of external signers from -signer.
 #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
 #[serde(deny_unknown_fields)]
-pub struct EnumerateSigners(pub Vec<Signers>);
+pub struct EnumerateSigners {
+    /// List of external signers.
+    pub signers: Vec<Signers>,
+}
 
 /// An item from the list returned by the JSON-RPC method `enumeratesigners`
 #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
 #[serde(deny_unknown_fields)]
 pub struct Signers {
     /// Master key fingerprint.
-    pub hex: String,
+    pub fingerprint: String,
     /// Device name.
-    #[serde(rename = "str")]
-    pub device_name: String,
+    pub name: String,
 }