[Improvement] Unreliable CI because of GitHub Rate Limiting

[theoludwig]

Type of Improvement

Continuous Integration and GitHub Actions

Proposal

There seems to have an issue with rate limiting on macOS.

Refs: #417 and https://github.com/editorconfig-checker/editorconfig-checker.javascript/actions/runs/12693264299/job/35388685716

Anyway, that's not critical, so if we doesn't know how to fix, it's not too dramatic, but still annoying, it could be good to fix it, if we find a way.

[klaernie]

I have the suspicion, that this is caused by the lower number of GitHub Actions runners for MacOS, meaning that more jobs run on fewer machines, all together hitting the GitHub APIs harder.

Maybe a solution would be to opportunistically use the token GitHub automatically provides.