bump deps, fix aura-ext pallet, and fill in stubs for XCM (#600)

* bump deps, fix aura-ext pallet, and fill in stubs for XCM

* response handler, asset trap, asset claims

* subscription_service

* update xcmp-queue mock

* fix tests

* Update polkadot deps

Co-authored-by: Andronik Ordian <write@reusable.software>
Co-authored-by: Bastian Köcher <info@kchr.de>

polkadot-parachains/shell/src/lib.rs

@@ -213,6 +213,9 @@ impl Config for XcmConfig {
 	type Weigher = FixedWeightBounds<UnitWeightCost, Call, MaxInstructions>; // balances not supported
 	type Trader = (); // balances not supported
 	type ResponseHandler = (); // Don't handle responses for now.
+	type AssetTrap = (); // don't trap for now
+	type AssetClaims = (); // don't claim for now
+	type SubscriptionService = (); // don't handle subscriptions for now
 }
 
 impl cumulus_pallet_xcm::Config for Runtime {