ci: bump checkout action version

[github-actions[bot]]

Looks like some formatting rules failed.

✨ The action has attempted automatic fixes ✨

If any were succesful, they were committed to the branch. We suggest using git pull --rebase to apply them locally.

If some errors could not be fixed automatically, you can:

🏎️ Get results locally by running pre-commit run --all-files 🕵️ Examine the results in the Run pre-commit section of this workflow pre-commit

We also strongly recommend setting up the ruff and black extensions to auto-format on save in your chosen editor.

[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #545 will not alter performance

_{Comparing ci/bump_checkout_action_version (a1c05fc) with main (9c34fcc)}

Summary

✅ 7 untouched benchmarks