Delaying reveal process in the "make and reveal a deposit" test.

[dimpar]

It happens that a reveal process starts when a deposit is not captured by the Bitcoin chain because it's out of sync. A delay is added to wait a bit for a chain to sync. This should fix:

1) System Test - Minting and unminting
       when minting is initiated by making and revealing a deposit to the TBTCVault
         "before all" hook: make and reveal deposit for "should broadcast the deposit transaction on the Bitcoin network":
     Error: Electrum action failure: [daemon error: DaemonError({'code': -5, 'message': 'No such mempool or blockchain transaction. Use gettransaction for wallet transactions.'})]
      at Client.withElectrum (node_modules/@keep-network/tbtc-v2.ts/src/electrum.ts:190:13)
      at runMicrotasks (<anonymous>)
      at processTicksAndRejections (internal/process/task_queues.js:95:5)
      at async Object.revealDeposit (node_modules/@keep-network/tbtc-v2.ts/src/deposit.ts:393:5)
      at async Context.<anonymous> (test/minting-unminting.test.ts:159:9)

which was observed here: https://github.com/keep-network/tbtc-v2/actions/runs/6061282789/job/16446311652

[michalinacienciala]

I'm running the system tests on the code from this PR here: https://github.com/keep-network/tbtc-v2/actions/runs/6084288848. Let see in 2 hours if they're green.

[michalinacienciala]

@dimpar, take a look at https://github.com/keep-network/tbtc-v2/actions/runs/6084288848/job/16505924432 - the redemptions are still going on, but we have a failure in the minting flow, different than previously, but in the same test:

  1) System Test - Minting and unminting
       when minting is initiated by making and revealing a deposit to the TBTCVault
         "before all" hook: make and reveal deposit for "should broadcast the deposit transaction on the Bitcoin network":
     Error: Electrum action failure: [the transaction was rejected by network rules.

[michalinacienciala]

Btw, there's a GH Actions outage right now and some things may behave abnormally. But the error we got in the system tests doesn't look to me like something caused by that.

[michalinacienciala]

I've re-run the System Tests job now that the GH outage is fixed: https://github.com/keep-network/tbtc-v2/actions/runs/6084288848. Let's see how it behaves...

[michalinacienciala]

I've run the System tests twice on the feature branch, after the GH outage and the tests were passing.