update pybind11 for newer Python compatibility

[garfieldnate]

• Mac OSX Ventura 13.0
• M2 processor
• Python 3.11.4
• CMake 3.27.6

pip install igibson leads to a bunch of compile errors starting with error: member access into incomplete type 'PyFrameObject' (aka '_frame'). There's a discussion of the issue at the Pybind11 repo here. The highlighted comment says that this should be fixed in the latest Pybind11 version.

I'm including the error log from my install here, as well.

install.log