pkgdown:::build_quarto_articles explicitly

[d-morrison]

Thank you for taking the time to submit a pull request!

To maximize the chances of acceptance:

• The title of your PR should briefly describe the change.
• The body of your PR should contain Fixes #issue-number (if relevant).
• Commit/merge messages to be included in NEWS.md should begin with -.
• Code should follow the tidyverse style guide.
• Documentation should use roxygen2, with Markdown syntax.
• Contributions should include unit tests (using testthat).

For more information see Contributing.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

[github-actions]

📕 Preview documentation for this PR has been cleaned up.

[d-morrison]

not necessary