ci: linting.yml: Upgrade GitHub Actions

[cclauss]

• https://github.com/actions/checkout/releases
• https://github.com/tj-actions/changed-files/releases

Related Issues

• fixes #issue-number

Proposed Changes:

How did you test it?

Notes for the reviewer

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:.
• I documented my code
• I ran pre-commit hooks and fixed any issue

[CLAassistant]

All committers have signed the CLA.

[masci]

Hey @cclauss thanks for the PR! Just out of curiosity, why did you limit your changes to linting.yaml?

[cclauss]

I like to keep the first interaction with a repo simple to see how quickly things get reviewed, etc. I can turn on the steam on later PRs.

[masci]

LGTM!