[Bioc-devel] pkgdown::build_site_github_pages fails with "Quarto articles require Bootstrap 5"

I apologise if the reason for this error will be outside the scope of this
list, but I'd appreciate it if someone can help me to identify it.

From today (more likely yesterday) check-bioc Github action that uses

"bioconductor/bioconductor_docker:devel" container fails during
pkgdown::build_site_github_pages(). Error is "Quarto articles require
Bootstrap 5".
Technically, this is a consequence of a recent change in pkgdown:
https://github.com/r-lib/pkgdown/pull/2797/files. What I don't understand
is if it's an issue of bioc docker image, or pkgdown, or
biocthis::use_bioc_github_action(). Does anyone know?

Best,
Oleksii