v1.12.5
CI: Use Dependabot to update GitHub Actions in this repo, and pin all external GitHub Actions to full-length commit hashes (#55283)
[release-1.12] Bump actions/checkout from 4.1.7 to 6.0.2
Merge pull request #60950 from JuliaLang/dependabot/github_actions/release-1.12/actions/checkout-6.0.2