Fixed serializiation determinacy problems.

crates/bft-json-crdt/src/json_crdt.rs

@@ -17,6 +17,7 @@ use fastcrypto::{
     traits::{KeyPair, ToFromBytes},
     // Verifier,
 };
+use indexmap::IndexMap;
 use serde::{Deserialize, Serialize};
 use serde_with::{serde_as, Bytes};
 
@@ -256,7 +257,7 @@ pub enum JsonValue {
     Number(f64),
     String(String),
     Array(Vec<JsonValue>),
-    Object(HashMap<String, JsonValue>),
+    Object(IndexMap<String, JsonValue>),
 }
 
 impl Display for JsonValue {