Contracts: Use RuntimeUpgrade hooks instead of Hooks::on_runtime_upgrade (#2570)

* Fixes

* Remove on_runtime_upgrade hook

* remove upgrade_fn / add doc to Migration struct

* Add cumulus_pallet_*::migration to Migrations type

* add docstring

* fix

* Update parachain-template/runtime/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Update parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/lib.rs

* Update pallets/parachain-system/src/migration.rs

---------

Co-authored-by: Bastian Köcher <git@kchr.de>

cumulus/parachains/runtimes/contracts/contracts-rococo/Cargo.toml

@@ -86,6 +86,7 @@ std = [
 	"frame-support/std",
 	"frame-system-rpc-runtime-api/std",
 	"frame-system/std",
+    "frame-try-runtime/std",
 	"kusama-runtime-constants/std",
 	"pallet-aura/std",
 	"pallet-authorship/std",

cumulus/parachains/runtimes/contracts/contracts-rococo/src/lib.rs

@@ -95,9 +95,16 @@ pub type SignedExtra = (
 pub type UncheckedExtrinsic =
 	generic::UncheckedExtrinsic<Address, RuntimeCall, Signature, SignedExtra>;
 
+/// Migrations to apply on runtime upgrade.
 pub type Migrations = (
+	cumulus_pallet_dmp_queue::migration::Migration<Runtime>,
+	cumulus_pallet_parachain_system::migration::Migration<Runtime>,
+	cumulus_pallet_xcmp_queue::migration::Migration<Runtime>,
+	pallet_balances::migration::MigrateToTrackInactive<Runtime, xcm_config::CheckingAccount>,
 	pallet_contracts::Migration<Runtime>,
+	pallet_multisig::migrations::v1::MigrateToV1<Runtime>,
 	pallet_collator_selection::migration::v1::MigrateToV1<Runtime>,
+	pallet_xcm::migration::v1::MigrateToV1<Runtime>,
 );
 
 type EventRecord = frame_system::EventRecord<

cumulus/parachains/runtimes/contracts/contracts-rococo/src/xcm_config.rs

@@ -43,6 +43,7 @@ parameter_types! {
 	pub RelayChainOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();
 	pub UniversalLocation: InteriorMultiLocation = Parachain(ParachainInfo::parachain_id().into()).into();
 	pub const ExecutiveBody: BodyId = BodyId::Executive;
+	pub CheckingAccount: AccountId = PolkadotXcm::check_account();
 }
 
 /// We allow root and the Relay Chain council to execute privileged collator selection operations.