py-pybind11: update to 2.12.0.

Convert to wheel.mk.

New Features:

    pybind11 now supports compiling for NumPy 2. Most code shouldn't change (see upgrade-guide-2.12 for details). However, if you experience issues you can define PYBIND11_NUMPY_1_ONLY to disable the new support for now, but this will be removed in the future. #5050
    pybind11/gil_safe_call_once.h was added (it needs to be included explicitly). The primary use case is GIL-safe initialization of C++ static variables. #4877
    Support move-only iterators in py::make_iterator, py::make_key_iterator, py::make_value_iterator. #4834
    Two simple py::set_error() functions were added and the documentation was updated accordingly. In particular, py::exception<>::operator() was deprecated (use one of the new functions instead). The documentation for py::exception<> was further updated to not suggest code that may result in undefined behavior. #4772

Bug fixes:

    Removes potential for Undefined Behavior during process teardown. #4897
    Improve compatibility with the nvcc compiler (especially CUDA 12.1/12.2). #4893
    pybind11/numpy.h now imports NumPy's multiarray and _internal submodules with paths depending on the installed version of NumPy (for compatibility with NumPy 2). #4857
    Builtins collections names in docstrings are now consistently rendered in lowercase (list, set, dict, tuple), in accordance with PEP 585. #4833
    Added py::typing::Iterator<T>, py::typing::Iterable<T>. #4832
    Render py::function as Callable in docstring. #4829
    Also bump PYBIND11_INTERNALS_VERSION for MSVC, which unlocks two new features without creating additional incompatibilities. #4819
    Guard against crashes/corruptions caused by modules built with different MSVC versions. #4779
    A long-standing bug in the handling of Python multiple inheritance was fixed. See PR #4762 for the rather complex details. #4762
    Fix bind_map with using declarations. #4952
    Qualify py::detail::concat usage to avoid ADL selecting one from somewhere else, such as modernjson's concat. #4955
    Use new PyCode API on Python 3.12+. #4916
    Minor cleanup from warnings reported by Clazy. #4988
    Remove typing and duplicate class_ for KeysView/ValuesView/ItemsView. #4985
    Use PyObject_VisitManagedDict() and PyObject_ClearManagedDict() on Python 3.13 and newer. #4973
    Update make_static_property_type() to make it compatible with Python 3.13. #4971

    Render typed iterators for make_iterator, make_key_iterator, make_value_iterator. #4876
    Add several missing type name specializations. #5073
    Change docstring render for py::buffer, py::sequence and py::handle (to Buffer, Sequence, Any). #4831
    Fixed base_enum.__str__ docstring. #4827
    Enforce single line docstring signatures. #4735
    Special 'typed' wrappers now available in typing.h to annotate tuple, dict, list, set, and function. #4259
    Create handle_type_name specialization to type-hint variable length tuples. #5051

    Setting PYBIND11_FINDPYTHON to OFF will force the old FindPythonLibs mechanism to be used. #5042
    Skip empty PYBIND11_PYTHON_EXECUTABLE_LAST for the first cmake run. #4856
    Fix FindPython mode exports & avoid pkg_resources if importlib.metadata available. #4941
    Python_ADDITIONAL_VERSIONS (classic search) now includes 3.12. #4909
    pybind11.pc is now relocatable by default as long as install destinations are not absolute paths. #4830
    Correctly detect CMake FindPython removal when used as a subdirectory. #4806
    Don't require the libs component on CMake 3.18+ when using PYBIND11_FINDPYTHON (fixes manylinux builds). #4805
    pybind11_strip is no longer automatically applied when CMAKE_BUILD_TYPE is unset. #4780
    Support DEBUG_POSFIX correctly for debug builds. #4761
    Hardcode lto/thin lto for Emscripten cross-compiles. #4642
    Upgrade maximum supported CMake version to 3.27 to fix CMP0148 warnings. #4786

Documentation:

    Small fix to grammar in functions.rst. #4791
    Remove upper bound in example pyproject.toml for setuptools. #4774

CI:

    CI: Update NVHPC to 23.5 and Ubuntu 20.04. #4764
    Test on PyPy 3.10. #4714

Other:

    Use Ruff formatter instead of Black. #4912
    An assert() was added to help Coverty avoid generating a false positive. #4817

(wiz)