fix: use fetch_add for incrementing depth when creating a savepoint

query-engine/driver-adapters/src/transaction.rs

@@ -191,7 +191,9 @@ impl QuaintTransaction for JsTransaction {
     async fn create_savepoint(&self) -> quaint::Result<()> {
         let current_depth = self.depth.load(Ordering::SeqCst);
         let new_depth = current_depth + 1;
-        self.depth.store(new_depth, Ordering::SeqCst);
+
+        // Increment the depth value
+        self.depth.fetch_add(1, Ordering::SeqCst);
 
         let create_savepoint_statement = self.create_savepoint_statement(new_depth);
         if self.options().use_phantom_query {