interactive mode doesn't work on Windows.

[ianzone]

reproduction repo: https://github.com/ianzone/node-template execute git commit on Windows PowerShell.

> git add . && git commit

╭───────────────────────╮
│ 🥊 lefthook v1.6.1  hook: prepare-commit-msg │
╰───────────────────────╯
┃  commitzen ❯


  ──────────────────
summary: (done in 0.01 seconds)
🥊  commitzen