ci: update GitHub Actions to latest versions

[danielvm-git]

Summary

Update all first-party GitHub Actions to latest versions for security and compatibility.

Outdated Actions Found

Action	Current	Latest	Files
actions/checkout	v4	v7	ci-cd.yml, promote-dev-to-staging.yml, promote-staging-to-production.yml, update-readme-status.yml
actions/setup-node	v4	v6	ci-cd.yml, update-readme-status.yml
actions/upload-artifact	v4	v7	ci-cd.yml

How to Update

sed -i 's|actions/checkout@v4|actions/checkout@v7|g' .github/workflows/*.yml
sed -i 's|actions/setup-node@v4|actions/setup-node@v6|g' .github/workflows/*.yml
sed -i 's|actions/upload-artifact@v4|actions/upload-artifact@v7|g' .github/workflows/*.yml

References

• Version matrix: .github/docs/reference/github-actions-versions.md in danielvm-git/.github
• Commit: 987c7e5