As a dev, `check_as_cran()` should be able to take into account specific options

## Validation criteria

- [ ] `check_as_cran` can be used with a specific repo

## Technical

```
withr::with_options(list(repos = c(CRAN = "https://cran.rstudio.com/")),
                    {checkhelper::check_as_cran() })
```

`check_as_cran `does not take into account the repo option and it is not possible to modify it in the parameters of the function
