availability-recovery: use IfDisconnected::TryConnect for chunks (#6081)

* availability-recovery: use `IfDisconnected::TryConnect` for chunks

* fix tests

polkadot/node/network/availability-recovery/src/lib.rs

@@ -362,7 +362,7 @@ impl RequestChunksFromValidators {
 		sender
 			.send_message(NetworkBridgeTxMessage::SendRequests(
 				requests,
-				IfDisconnected::ImmediateError,
+				IfDisconnected::TryConnect,
 			))
 			.await;
 	}

polkadot/node/network/availability-recovery/src/tests.rs

@@ -311,7 +311,7 @@ impl TestState {
 				AllMessages::NetworkBridgeTx(
 					NetworkBridgeTxMessage::SendRequests(
 						requests,
-						IfDisconnected::ImmediateError,
+						_if_disconnected,
 					)
 				) => {
 					for req in requests {