Bump substrate version (#120)

* bump substrate

* cargo fmt --all

bridges/modules/ethereum/src/lib.rs

@@ -673,7 +673,7 @@ impl<T: Trait> Storage for BridgeStorage<T> {
 		};
 
 		let last_signal_block = header.context.last_signal_block().cloned();
-		HeadersByNumber::append_or_insert(header.header.number, vec![header.hash]);
+		HeadersByNumber::append(header.header.number, header.hash);
 		Headers::<T>::insert(
 			&header.hash,
 			StoredHeader {

bridges/modules/ethereum/src/mock.rs

@@ -59,6 +59,7 @@ impl frame_system::Trait for TestRuntime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 	type AvailableBlockRatio = AvailableBlockRatio;
 	type MaximumBlockLength = MaximumBlockLength;
 	type Version = ();