graph: Simplify update_ethereum_block_pointer_operations

Author: Jannis

graph/src/data/subgraph/schema.rs

@@ -314,7 +314,7 @@ impl SubgraphDeploymentEntity {
         block_ptr_to: EthereumBlockPointer,
     ) -> Vec<MetadataOperation> {
         let mut entity = Entity::new();
-        entity.set("latestEthereumBlockHash", block_ptr_to.hash_hex());
+        entity.set("latestEthereumBlockHash", block_ptr_to.hash);
         entity.set("latestEthereumBlockNumber", block_ptr_to.number);
 
         vec![update_metadata_operation(