gh-36256: Support more system-site packages
Add boilerplate for a few more python packages to be detected with
`--enable-system-site-packages`.
Marked as critical because it repairs rpy2 system package on
ubuntu/debian
URL: https://github.com/sagemath/sage/pull/36256
Reported by: Michael Orlitzky
Reviewer(s): Dima Pasechnik, Matthias Köppe, Michael Orlitzky