Update all pip packages related to coreboot's documentation to their latest available version, and update the doc.coreboot.org base image to Alpine 3.19.1. Add myst-parser in preparation to switch from Recommonmark to MyST Parser. TEST: The documentation builds and renders properly when built using the updated container. Change-Id: I8df4aadabc49c0201a836333745fe138184595ac Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/80312 Reviewed-by: Martin L Roth <gaumless@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>