Add classes odd, even, and header back to table rows for Pandoc >= 3.2.1, so tables can be styled properly (thanks, @therealgenna, #2567).

beamer_presentation support handling latex dependencies via the new extra_dependencies argument and declarations within chunks (e.g., knitr::asis_output("", meta = list(rmarkdown::latex_dependency("longtable")))) (thanks, @cderv, @atusy, #2478).