BlockId removal: refactor: Backend::block_indexed_body (#12609)

* BlockId removal: refactor: Backend::block_indexed_body

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

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

* trigger CI job

substrate/client/network/sync/src/block_request_handler.rs

@@ -374,7 +374,7 @@ where
 			};
 
 			let indexed_body = if get_indexed_body {
-				match self.client.block_indexed_body(&BlockId::Hash(hash))? {
+				match self.client.block_indexed_body(&hash)? {
 					Some(transactions) => transactions,
 					None => {
 						log::trace!(