audit: add uses_from_macos dependency ordering

[jonchang]

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same change?
• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes? Here's an example.
• Have you successfully run brew style with your changes locally?
• Have you successfully run brew tests with your changes locally?

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Brings uses_from_macos into the brew audit fold by checking that it

1. comes after any depends_on statements
2. is ordered like depends_on statements

[jonchang]

Note that I wasn't able to deduplicate more code in rubocops/dependency_order.rb. I need to pass in a predicate to a more generalized function but there's something funky going on with how rubocop's node searcher macros are constructed and I can't figure out how to work around it.

[jonchang]

Thanks for the quick review!