Formatting for numbers?

``` r
x <- 123456
cli::cli_inform("Downloading {x} files")
#> Downloading 123456 files
```

<sup>Created on 2023-11-08 with [reprex v2.0.2.9000](https://reprex.tidyverse.org)</sup>

Would be nice to have

```R
#> Downloading 123,456 files
```