[miner] Update miner to retrieve and write sBTC ops to the .sbtc contract

[jferrant]

The miner should be updating the contract with sBTC ops similar to the below code snippet:

for stack_stx_op in operations.into_iter() {
   let StackStxOp {
       sender,
       reward_addr,
       stacked_ustx,
       num_cycles,
       block_height,
       txid,
       burn_header_hash,
       ..
   } = &stack_stx_op;
   let result = clarity_tx.connection().as_transaction(|tx| {
       tx.run_contract_call(
           &sender.clone().into(),
           None,
           &boot_code_id(active_pox_contract, mainnet),
           "stack-stx",
           &[
               Value::UInt(*stacked_ustx),
               // this .expect() should be unreachable since we coerce the hash mode when
               // we parse the StackStxOp from a burnchain transaction
               reward_addr
                   .as_clarity_tuple()
                   .expect("FATAL: stack-stx operation has no hash mode")
                   .into(),
               Value::UInt(u128::from(*block_height)),
               Value::UInt(u128::from(*num_cycles)),
           ],
           |_, _| false,
       )
   });
   match result {
       Ok((value, _, events)) => {
           if let Value::Response(ref resp) = value {
               if !resp.committed {
                   debug!("StackStx burn op rejected by PoX contract.";
                          "txid" => %txid,
                          "burn_block" => %burn_header_hash,
                          "contract_call_ecode" => %resp.data);
               } else {
                   debug!("Processed StackStx burnchain op"; "amount_ustx" => stacked_ustx, "num_cycles" => num_cycles, "burn_block_height" => block_height, "sender" => %sender, "reward_addr" => %reward_addr, "txid" => %txid);
               }
               let mut execution_cost = clarity_tx.cost_so_far();
               execution_cost
                   .sub(&cost_so_far)
                   .expect("BUG: cost declined between executions");

Depends on #3958