Pre-commit hooks can cause many of the commands to fail

It would be nice if the commands that push supported a `--no-verify` flag. I've had to implement a local function like this to get around the pre-commit hooks that sometimes fail during push after a rebase.

```shell
# git stack --push without running hooks.
gs-push-quiet() {
git config core.hooksPath /dev/null
gh stack push
git config --unset core.hooksPath
}
```

Not all my colleagues use pre-commit, so sometimes a random change somewhere in the mono repo will block a push without `--no-verify`, even though all my commits are clean.

Start at the gh stack push command and inspect how its command-line flags are defined and passed to Git. Check the other commands that push, then verify that --no-verify allows pushes to bypass pre-commit hooks without changing the normal behavior.

索引モデルが issue の本文から書いたものです。