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GH-41841: [R][CI] Remove more defunct rhub containers (#41828)

Testing CI to see if we can replicate the incoming NOTEs:

```
Found the following (possibly) invalid file URIs:
  URI: articles/read_write.html
    From: README.md
  URI: articles/data_wrangling.html
    From: README.md
  URI: reference/acero.html
    From: README.md
  URI: articles/install.html
    From: README.md
  URI: articles/install_nightly.html
    From: README.md
```

I wasn't able to replicate them in CI (even with `_R_CHECK_CRAN_INCOMING_REMOTE_` set to true, and installing pandoc so that the docs could be munged.)

But in the process realized we were running old rhub images that aren't updated anymore (thanks, @ thisisnic). Also did a bit of cleanup of `--run-donttest` which is now no longer needed (was removed in favor of the env var in 4.0)
* GitHub Issue: #41841

Authored-by: Jonathan Keane <jkeane@gmail.com>
Signed-off-by: Jonathan Keane <jkeane@gmail.com>