fix: Packer don't reset stty properly

[smutel]

🗣 Description

After the execution of pre-commit, my shell is completely blocked.
I need to type the command reset to re-init it.
The goal of this PR is to resolve this issue.

💭 Motivation and context

Workaround for bug in packer: hashicorp/packer#11416

🧪 Testing

Test it with command:

$ pre-commit try-repo /tmp/pre-commit-packer packer_fmt --verbose --all-files

✅ Pre-approval checklist

• This PR has an informative and human-readable title.
• Changes are limited to a single goal - eschew scope creep!
• All future TODOs are captured in issues, which are referenced
  in code comments.
• All relevant type-of-change labels have been added.
• I have read the CONTRIBUTING document.
• These code changes follow cisagov code standards.
• All relevant repo and/or project documentation has been updated
  to reflect the changes in this PR.
• Tests have been added and/or modified to cover the changes in this PR.
• All new and existing tests pass.

✅ Pre-merge checklist

• Revert dependencies to default branches.
• Finalize version.

✅ Post-merge checklist

• Create a release.

[jsf9k]

FWIW, I am also seeing this behavior.

[mcdonnnj]

I haven't cut a new release yet, but can you verify that it still occurs as of #54? Since the command is running in a daemonized fork I'm curious if the behavior is still exhibited.

[smutel]

Yes, same behavior. I rebased by branch.