Draft: Replace pybind11 with nanobind
The author of pybind11 recommends to migrate to the successor project, nanobind# (see https://nanobind.readthedocs.io/en/latest/why.html).
Unfortunately, there does not seem to be a replacement for py::vectorize
yet, which we heavily rely on
https://github.com/wjakob/nanobind/discussions/508
Edited by Leon Merten Lohse