FIX: [okx] fix query open order time param

[bailantaotao]

No description provided.

[bbgokarma-bot]

Welcome back! @bailantaotao, This pull request may get 210 BBG.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0e5ff14) 21.90% compared to head (7841813) 21.90%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1508   +/-   ##
=======================================
  Coverage   21.90%   21.90%           
=======================================
  Files         602      602           
  Lines       43913    43913           
=======================================
  Hits         9620     9620           
  Misses      33593    33593           
  Partials      700      700           

Files	Coverage Δ
...g/exchange/okex/okexapi/get_open_orders_request.go	0.00% <ø> (ø)

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[bbgokarma-bot]

Hi @bailantaotao,

Well done! 220 BBG has been sent to your polygon wallet. Please check the following tx:

https://polygonscan.com/tx/0x9c4b775c2b1ff83572aa8c24992fae1cd7ff2e673af05a9d0e47ede53a5efe30

Thank you for your contribution!