Bump Substrate/Polkadot/Cumulus refs (#1295)

Substrate: 31d90c202d6df9ce3837ee55587b604619a912ba
Polkadot: 60df3c55c711c2872872d6220f98b2611340e051
Cumulus: a9630551c2

bridges/bin/millau/runtime/src/lib.rs

@@ -138,6 +138,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	impl_version: 1,
 	apis: RUNTIME_API_VERSIONS,
 	transaction_version: 1,
+	state_version: 0,
 };
 
 /// The version information used to identify this runtime when compiled natively.
@@ -204,6 +205,7 @@ impl frame_system::Config for Runtime {
 	type SS58Prefix = SS58Prefix;
 	/// The set code logic, just the default since we're not a parachain.
 	type OnSetCode = ();
+	type MaxConsumers = frame_support::traits::ConstU32<16>;
 }
 
 impl pallet_randomness_collective_flip::Config for Runtime {}
@@ -562,7 +564,7 @@ pub type Executive = frame_executive::Executive<
 	Block,
 	frame_system::ChainContext<Runtime>,
 	Runtime,
-	AllPallets,
+	AllPalletsWithSystem,
 >;
 
 impl_runtime_apis! {
@@ -664,7 +666,7 @@ impl_runtime_apis! {
 	}
 
 	impl beefy_primitives::BeefyApi<Block> for Runtime {
-		fn validator_set() -> ValidatorSet<BeefyId> {
+		fn validator_set() -> Option<ValidatorSet<BeefyId>> {
 			Beefy::validator_set()
 		}
 	}
@@ -841,7 +843,7 @@ impl_runtime_apis! {
 				}
 
 				fn bridged_relayer_id() -> Self::InboundRelayer {
-					Default::default()
+					[0u8; 32].into()
 				}
 
 				fn account_balance(account: &Self::AccountId) -> Self::OutboundMessageFee {