BlockId removal: refactor: Backend::justifications (#6229)

* BlockId removal: refactor: Backend::justifications

It changes the arguments of `Backend::justifications` method from: `BlockId<Block>` to: `&Block::Hash`

This PR is part of BlockId::Number refactoring analysis (paritytech/substrate#11292)

* formatting

* update lockfile for {"substrate"}

Co-authored-by: parity-processbot <>

polkadot/node/client/src/lib.rs

@@ -358,12 +358,15 @@ impl sc_client_api::BlockBackend<Block> for Client {
 		}
 	}
 
-	fn justifications(&self, id: &BlockId<Block>) -> sp_blockchain::Result<Option<Justifications>> {
+	fn justifications(
+		&self,
+		hash: &<Block as BlockT>::Hash,
+	) -> sp_blockchain::Result<Option<Justifications>> {
 		with_client! {
 			self,
 			client,
 			{
-				client.justifications(id)
+				client.justifications(hash)
 			}
 		}
 	}