Enable pov-reclaim on rococo and westend parachains (#3858)

Enables pov-reclaim on the rococo/westend parachains, part of
https://github.com/paritytech/polkadot-sdk/issues/3622

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

@@ -90,6 +90,7 @@ pub type SignedExtra = (
 	frame_system::CheckNonce<Runtime>,
 	frame_system::CheckWeight<Runtime>,
 	pallet_transaction_payment::ChargeTransactionPayment<Runtime>,
+	cumulus_primitives_storage_weight_reclaim::StorageWeightReclaim<Runtime>,
 );
 /// Unchecked extrinsic type as expected by this runtime.
 pub type UncheckedExtrinsic =