feat: Added retry to PromiseUtils

[Boegie19]

Added retry to PromiseUtils

If you want a promise to be tried multiple times before it fails.

[Quenty]

Shouldn’t this backoff or have some jitter too?

[Boegie19]

For my personal use case no. for other use-cases probably.

The only way I can think of adding it is task.Wait(waittimeBetwenRetries) with waittimeBetwenRetries being a parameter in the retry function. I will make a commit with that added.

But there is probably a better way to do this.