Add and adjust cask rubocops to handle variables

[Rylan12]

This PR makes two rubocop changes to casks to enforce new rules about the arch and on_arch_conditional DSLs that have now been added. This PR will not be able to be merged until the corresponding homebrew/cask PRs (https://github.com/Homebrew/homebrew-cask/pull/129479 and https://github.com/Homebrew/homebrew-cask/pull/129480) are merged.

The first change in this PR is that use of the arch and on_arch_conditional DSLs is now required instead of arch = Hardware::CPU.intel? ? "intel" : "arm". There is an autocorrector which covers nearly all cases that we currently have in homebrew/cask (there are a few casks that did some weird things so I just fixed those manually in https://github.com/Homebrew/homebrew-cask/pull/129480).

The second change is in the way that the stanza order and stanza grouping logic works. Now, the arch DSL and all foo = on_arch_conditional calls will be grouped together (with arch first) at the top of the file (note: other variable assignments that aren't arch-related are unaffected). Currently, this looks like this:

cask 'foo' do
  arch arm: "arm64", intel: "x86_64"
  folder = on_arch_conditional arm: "arm", intel: "intel"

  version "1.0.0"
  sha256 "..."
end

I chose this because it most closely resembles the current way things are done so it minimizes the changes necessary. However, I'm open to other ordering if desired.

[BrewTestBot]

Review period will end on 2022-08-11 at 22:38:24 UTC.

[BrewTestBot]

Review period ended.

[Rylan12]

To keep track of progress, here's a list of all of the PRs that include style fixes (some were separated so version bumps could happen at the same time):

• https://github.com/Homebrew/homebrew-cask/pull/129479
• https://github.com/Homebrew/homebrew-cask/pull/129480
• https://github.com/Homebrew/homebrew-cask-versions/pull/14481
• https://github.com/Homebrew/homebrew-cask-versions/pull/14475
• https://github.com/Homebrew/homebrew-cask-versions/pull/14476
• https://github.com/Homebrew/homebrew-cask-versions/pull/14477
• https://github.com/Homebrew/homebrew-cask-versions/pull/14478
• https://github.com/Homebrew/homebrew-cask-versions/pull/14479
• https://github.com/Homebrew/homebrew-cask-versions/pull/14480
• https://github.com/Homebrew/homebrew-cask-drivers/pull/2953
• https://github.com/Homebrew/homebrew-cask-drivers/pull/2952