- Yes, we have yet another `.rubocop.yml` but in-line exclusions in
`<span class="display:none;">` in the Markdown seemed more ugly.
- This needed tweaks to `brew style` to make it read the new config
file when we're scanning docs.
- We had `rake test` as a task, but we never actually ran it in CI or
anywhere before building the site.
- The `html-proofer` gem
[only supports Ruby 3.1](https://github.com/gjtorikian/html-proofer/blob/main/html-proofer.gemspec#L20),
so I bumped the linting job to use Ruby 3.1 across the board.
- This will make things slower (or maybe it's taking ages because of my
dodgy hotel internet connection), maybe we should only run it on a
schedule as a separate job?
- Fixes https://github.com/Homebrew/brew/issues/ 15908.
- `HOMEBREW_NO_INSTALL_FROM_API` was passed in a few places
unnecessarily
- https://github.com/Homebrew/actions/pull/393 will change the default
behaviour of setup-homebrew so let's be explicit to speed things up
and avoid changes when it's merged
