Bump more files to Sorbet typed: strict

[issyl0]

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• I had a break for a while, but inspiration struck tonight so here’s some more effort for Use Sorbet typed: strict in all (non-package) files in Homebrew organisation #17297.

[MikeMcQuaid]

Thanks @issyl0! A few style suggestions, none blocking.

[carlocab]

Suggested change

	sig { params(lib: Pathname, deps: T::Array[Formula]).returns(T.nilable(String)) }
	sig { params(lib: Pathname, deps: Dependencies).returns(T.nilable(String)) }