Adding ruff check to the GH Actions

[john-science]

What is the change?

Here I add an extra GitHub CI check: ruff.

Why is the change being made?

ARMI has unofficially been under ruff linting for over three months. It's time to make ruff formatting in ARMI mandatory.

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Checklist

• This PR has only one purpose or idea.
• Tests have been added/updated to verify that the new/changed code works.

• The code style follows good practices.
• The commit message(s) follow good practices.

• The release notes (location doc/release/0.X.rst) are up-to-date with any important changes.
• The documentation is still up-to-date in the doc folder.
• The dependencies are still up-to-date in pyproject.toml.

[john-science]

@drewj-usnctech @sombrereau @keckler @mgjarrett Just FYI. Tell yer friends.

[opotowsky]

Happy to approve!