[R] Update Arrow for R cheatsheet to include GCS

[asfimport]

The Arrow for R cheatsheet was released in 8.0.0. It could use an update to highlight new features released since then, for example reading+writing to Google Could Storage (in addition to S3).

https://github.com/apache/arrow/tree/master/r/cheatsheet

Reporter: Stephanie Hazlitt / @stephhazlitt
Assignee: Stephanie Hazlitt / @stephhazlitt

_{Note: This issue was originally created as ARROW-18283. Please see the migration documentation for further details.}