Fix issue with rate limit guard waiting sub ms

[Jonnern]

When the rate limit is hit and a request is delayed, it loops extremely fast without delay because of Task.Wait(TimeSpan) is not able to wait on a shorter timespan than 1 ms (ref Task.cs source)

Delaying call to 0/public/Ticker by 00:00:00.0002703 because of ratelimit guard RateLimitGuard; Limit of 1 per 00:00:01, Request weight: 1, Current: 1, Limit: 1, requests now being limited: 1
Delaying call to 0/public/Ticker by 00:00:00.0002376 because of ratelimit guard RateLimitGuard; Limit of 1 per 00:00:01, Request weight: 1, Current: 1, Limit: 1, requests now being limited: 1
Delaying call to 0/public/Ticker by 00:00:00.0002323 because of ratelimit guard RateLimitGuard; Limit of 1 per 00:00:01, Request weight: 1, Current: 1, Limit: 1, requests now being limited: 1
...

[JKorf]

Thanks for the catch. Just wondering, but wouldn't it be safer to instead wait for a minimum of 1 milliseconds?

[Jonnern]

I agree. I updated the fix

[Jonnern]

Maybe it's better to use Task.Delay(int32) and round up number of ms. Because using wait with TimeSpan will leave < 1ms more wait time which will trigger another loop of waiting

[JKorf]

Good point, I think that would make sense yes

[Jonnern]

It should be good to go now. I force-pushed to squash my commits