fix(data-formats): Use correct CBOR serializer for Error messages

Use `serde_tuple` to serialize/deserialize the error messages
as a CBOR arrays instead of a CBOR maps as described in the
FIDO Device Onboard Specification.

Fixes: #620

Signed-off-by: Miguel Martín <mmartinv@redhat.com>

data-formats/src/messages/v10/error.rs

@@ -1,11 +1,11 @@
-use serde::{Deserialize, Serialize};
+use serde_tuple::{Deserialize_tuple, Serialize_tuple};
 
 use crate::{
     constants::{ErrorCode, MessageType},
     messages::{ClientMessage, EncryptionRequirement, Message, ServerMessage},
 };
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize_tuple, Deserialize_tuple)]
 pub struct ErrorMessage {
     error_code: ErrorCode,
     previous_message_type: MessageType,

data-formats/src/messages/v11/error.rs

@@ -1,11 +1,11 @@
-use serde::{Deserialize, Serialize};
+use serde_tuple::{Deserialize_tuple, Serialize_tuple};
 
 use crate::{
     constants::{ErrorCode, MessageType},
     messages::{ClientMessage, EncryptionRequirement, Message, ServerMessage},
 };
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize_tuple, Deserialize_tuple)]
 pub struct ErrorMessage {
     error_code: ErrorCode,
     previous_message_type: MessageType,