RStudio label not working

The RStudio label is no longer working due to download URL change by the developer.

```
2022-12-20 09:04:00 : ERROR : rstudio : ERROR: Error downloading  error:
* Closing connection -1
curl: (3) URL using bad/illegal format or missing URL

2022-12-20 09:04:00 : REQ   : rstudio : ################## End Installomator, exit code 2 
```