Updated all pagination queries to work with the Stream instead of Iterator

CHANGELOG.md

@@ -6,6 +6,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+### Changed
+
+- [2334](https://github.com/FuelLabs/fuel-core/pull/2334): Prepare the GraphQL service for the switching to `async` methods.
+- [2337](https://github.com/FuelLabs/fuel-core/pull/2337): Updated all pagination queries to work with the async stream instead of the sync iterator.
+
+#### Breaking
+- [2337](https://github.com/FuelLabs/fuel-core/pull/2337): The maximum number of processed coins from the `coins_to_spend` query is limited to `max_inputs`.
+
 ## [Version 0.39.0]
 
 ### Added

crates/client/assets/schema.sdl

@@ -938,7 +938,7 @@ type Query {
 		"""
 		owner: Address!,
 		"""
-		The list of requested assets` coins with asset ids, `target` amount the user wants to reach, and the `max` number of coins in the selection. Several entries with the same asset id are not allowed.
+		The list of requested assets` coins with asset ids, `target` amount the user wants to reach, and the `max` number of coins in the selection. Several entries with the same asset id are not allowed. The result can't contain more coins than `max_inputs`.
 		"""
 		queryPerAsset: [SpendQueryElementInput!]!,
 		"""