fixed backslash literal bytestring for file.replace

[emmadionne1]

What does this PR do?

see issue for details

What issues does this PR fix or reference?

Fixes: #61944

Merge requirements satisfied?

[NOTICE] Bug fixes or features added to Salt require tests.

• Docs
• Changelog - https://docs.saltproject.io/en/master/topics/development/changelog.html
• Tests written/updated

Commits signed with GPG?

Yes

Please review Salt's Contributing Guide for best practices.

See GitHub's page on GPG signing for more information about signing commits with GPG.

[welcome]

Hi there! Welcome to the Salt Community! Thank you for making your first contribution. We have a lengthy process for issues and PRs. Someone from the Core Team will follow up as soon as possible. In the meantime, here’s some information that may help as you continue your Salt journey.
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[nicholasmhughes]

re-run full all

[nicholasmhughes]

re-run pr-alma-8-x86_64-py3-pytest

[nicholasmhughes]

re-run pr-centosstream-8-x86_64-py3-pytest

[nicholasmhughes]

re-run pr-freebsd-130-amd64-py3-pytest

[nicholasmhughes]

re-run pr-arch-lts-x86_64-py3-pytest

[nicholasmhughes]

re-run pr-fedora-35-x86_64-py3-pytest

[nicholasmhughes]

re-run pr-centos-7-x86_64-py3-pycryptodome-pytest

[nicholasmhughes]

re-run pr-centos-7-x86_64-py3-pycryptodome-pytest

[nicholasmhughes]

re-run pr-amazon-2-x86_64-py3-pytest

[welcome]

Congratulations on your first PR being merged! 🎉