Update substrate

Also removes the patch for zip since a new release was issued.

Closes https://github.com/serai-dex/serai/issues/81.

Contracts RPC purged as according to 
https://github.com/paritytech/substrate/pull/12358.

substrate/node/src/rpc.rs

@@ -9,7 +9,7 @@ use sp_api::ProvideRuntimeApi;
 
 pub use sc_rpc_api::DenyUnsafe;
 
-use serai_runtime::{BlockNumber, Hash, opaque::Block, AccountId, Balance, Index};
+use serai_runtime::{opaque::Block, AccountId, Balance, Index};
 
 pub struct FullDeps<C, P> {
   pub client: Arc<C>,
@@ -31,19 +31,16 @@ pub fn create_full<
 where
   C::Api: substrate_frame_rpc_system::AccountNonceApi<Block, AccountId, Index>
     + pallet_transaction_payment_rpc::TransactionPaymentRuntimeApi<Block, Balance>
-    + pallet_contracts_rpc::ContractsRuntimeApi<Block, AccountId, Balance, BlockNumber, Hash>
     + BlockBuilder<Block>,
 {
   use substrate_frame_rpc_system::{System, SystemApiServer};
   use pallet_transaction_payment_rpc::{TransactionPayment, TransactionPaymentApiServer};
-  use pallet_contracts_rpc::{Contracts, ContractsApiServer};
 
   let mut module = RpcModule::new(());
   let FullDeps { client, pool, deny_unsafe } = deps;
 
   module.merge(System::new(client.clone(), pool, deny_unsafe).into_rpc())?;
   module.merge(TransactionPayment::new(client.clone()).into_rpc())?;
-  module.merge(Contracts::new(client).into_rpc())?;
 
   Ok(module)
 }