fix: optimize v2 daily volume request with sleep 2s interval

[bryansniyve]

As commit mentioned, our API https://www.apollox.finance/bapi/future/v1/public/future/apx/pair has some concurrency issue when call 4 different chain request it will throw 90800 error as below:

{
  code: '90800',
  message: 'Bad Request',
  messageDetail: null,
  data: null,
  success: false
}

, so we decided to add 2s interval for each chain request.

[llamatester]

The apollox adapter exports:

> adapters@1.0.0 test
> ts-node --transpile-only cli/testAdapter.ts dexs apollox

🦙 Running APOLLOX adapter 🦙
---------------------------------------------------
Start Date:	Sun, 21 Jul 2024 00:00:00 GMT
End Date:	Mon, 22 Jul 2024 00:00:00 GMT
---------------------------------------------------

fetch  base 0
fetch  bsc 2000
fetch  arbitrum 4000
fetch  opbnb 6000
BSC 👇
Backfill start time: 21/4/2023
NO METHODOLOGY SPECIFIED
Daily volume: 54.93 M
Total volume: 299.12 B
End timestamp: 1721606399 (2024-07-21T23:59:59.000Z)


ARBITRUM 👇
Backfill start time: 21/4/2023
NO METHODOLOGY SPECIFIED
End timestamp: 1721606399 (2024-07-21T23:59:59.000Z)
Daily volume: 52.61 M
Total volume: 3.37 B


OP_BNB 👇
Backfill start time: 21/4/2023
NO METHODOLOGY SPECIFIED
End timestamp: 1721606399 (2024-07-21T23:59:59.000Z)
Daily volume: 49.56 k
Total volume: 326.99 M


BASE 👇
Backfill start time: 21/4/2023
NO METHODOLOGY SPECIFIED
End timestamp: 1721606399 (2024-07-21T23:59:59.000Z)
Daily volume: 103.84 k
Total volume: 728.45 M