foreach() %dorng% output without attributes

Hi @renozao , is there a way to get the output of `foreach()` using `%dorng%` without adding any RNG attribute to it?

Here is an example:
```
library(doRNG)
result <- 
foreach::foreach(i=1:2, .combine = c) %dorng% { 
  set.seed(1) 
  return(runif(1)) 
}
str(result)
```
`result` has `rng` and `doRNG_version` attributes, can we get a clean output without them?

Thank you