dvm: fix build

[alebcay]

• Have you followed the guidelines for contributing?
• Have you checked that there aren't other open pull requests for the same formula update/change?
• Have you built your formula locally with brew install --build-from-source <formula>, where <formula> is the name of the formula you're submitting?
• Is your test running fine brew test <formula>, where <formula> is the name of the formula you're submitting?
• Does your build pass brew audit --strict <formula> (after doing brew install <formula>)?

---

Thanks @Bo98 for chasing this down with upstream a few months ago here. Until it's fixed upstream, this should allow dvm to build again.

[BrewTestBot]

🤖 A scheduled task has triggered a merge.