cask/dsl/caveats: allow for simulated system checks in rosetta caveat

[bevanjkay]

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There is currently the possibility of audits failing when CI is run on an intel runner the the --arch=intel flag.
This ensures that the caveat is also printed if Homebrew::SimulateSystem is set to arm.

Unblocks: Homebrew/homebrew-cask#178165

[MikeMcQuaid]

Makes sense, thanks @bevanjkay!