Loading
or-tools: move pybind11-protobuf package into or-tools
or-tools is the only consumer of this library, and 1910563b is already one instance of the toplevel build being broken. Absorb pybind11-protobuf into or-tools, and manage the pinning there. It will also make it much easier to do the upcoming or-tools bump, which will also change these version bounds. pybind11-protobuf is not actually packaged in the version that or-tools asks for, but trying to use that version showed it wants abseil from 2023, which has been removed from nixpkgs.