Bump some utils/ files to Sorbet typed: strict

[issyl0]

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• Part of Use Sorbet typed: strict in all (non-package) files in Homebrew organisation #17297.
• Let’s see what goes 💥.

[MikeMcQuaid]

Good to go whenever you are! All comments are non-blocking, we can always clean this up post merge.

[MikeMcQuaid]

Looks good, thanks! All comments are non-blocking, feel free to disagree and self-merge with or without accepting without a rereview.