dexter-lsp 0.6.0 (new formula)

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Dexter is another language server for Elixir.

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https://github.com/Homebrew/homebrew-core/actions/runs/25465555144/job/74718373029?pr=281262#step:4:142

Note, the age of the repository seems to just barely be at the threshold.

When I ran brew audit --formula --new --online dexter-lsp on my machine, the test passed.