`core_r_pkgs` check always fails

The check `core_r_pkgs` always fails because the actual packages installed on Ubuntu have different names to the ones being checked.

Reprex

```r
audit.workbench::check("https://workbench.example.com/")
```

Output

```
ℹ Starting check: package(r_pkgs): Checking core_r_pkgs
✖ Check finished
```