Fix CI

[amoeba]

CI broke randomly, seems like something that'll fix itself.

It's the install sysreqs step is complaining about not having a GITHUB_PAT which it never has before. You also can't set a GITHUB_PAT env var on actions since its a restricted name.

I also note that sysreqs seems down at the moment:

> sysreqs::sysreq_commands('DESCRIPTION')
Error in utils::download.file(url, path, method = download_method(), quiet = quiet,  :
  cannot open URL 'http://crandeps.r-pkg.org/deps/rt,httr,stringr,askpass,knitr,rmarkdown,testthat,tibble'
In addition: Warning message:
In utils::download.file(url, path, method = download_method(), quiet = quiet,  :
  cannot open URL 'https://crandeps.r-pkg.org:443/deps/rt,httr,stringr,askpass,knitr,rmarkdown,testthat,tibble': HTTP status was '404 Not Found'

Filing a bug for now but hoping if I come back to this in a month it'll be fixed.