Use source build for dbdev on macOS arm

[Copilot]

dbdev on Apple Silicon was mapped to the macOS amd64 release artifact, which installs an incompatible executable. Upstream v0.1.7 does not publish a macOS arm binary, so the arm formula path needs a different install source.

• macOS arm install path

  • Switch the Hardware::CPU.arm? macOS stanza from the prebuilt amd64 tarball to the upstream v0.1.7 source tarball.
  • Add a Rust build dependency for that path.

• Build/install behavior

  • Build the CLI from cli/ with Cargo during installation instead of installing a prebuilt binary.
  • Keep the existing Intel macOS and Linux binary paths unchanged.

• Result

  • Apple Silicon no longer links an x86_64 executable.
  • The formula can install a working dbdev binary on macOS arm even without an upstream arm release artifact.

if Hardware::CPU.arm?
  url "https://github.com/supabase/dbdev/archive/refs/tags/v0.1.7.tar.gz"
  sha256 "3c7c6dc09c6ef8e76a1e9132b9ba5a8eb60ce94271c16fa889c56df72a140121"
  depends_on "rust" => :build

  def install
    system "cargo", "install", "--locked", "--root", prefix, "--path", "cli"
  end
end