[Async] Allow onRetry option for retry

[gperdomor]

Context:
Currently the retry function allows to repeat some function several times while fails until max retries is reached, without provide a way to know how many time was executed

Expected:
Should be usseful to know how many time the function fails or was executed... for example the async-retry package as an option to pass a onRetry callback which is executed on retries...

[aleclarson]

Hi @gperdomor, would you be interested in contributing this to the Radashi fork?

[gperdomor]

@aleclarson Hi buddy... Thank you for the invite... I will take a look 😄

[aleclarson]

If anyone's interested in pushing this forward, Gustavo got us started here: radashi-org/radashi#229

Just fork that and open a PR to Radashi, but please read all of the comments on the original PR first.