cad/netgen: Allow build with python-3.11.

Bump pybind version to 2.11.1 to fix build.

PR:		276698
Reported by:	Ruslan Makhmatkhanov <rm@FreeBSD.org>

cad/netgen/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	netgen
 PORTVERSION=	6.2.2401
+PORTREVISION=	1
 DISTVERSIONPREFIX=	v
 CATEGORIES=	cad
 
@@ -19,7 +20,7 @@ USES=		cmake python tcl tk gl xorg
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	NGSolve
-GH_TUPLE=	NGSolve:pybind11:v2.7.1:pybind11/external_dependencies/pybind11
+GH_TUPLE=	NGSolve:pybind11:v2.11.1:pybind11/external_dependencies/pybind11
 
 USE_GL=		gl glu
 USE_XORG=	x11 xmu xi

cad/netgen/distinfo

@@ -1,5 +1,5 @@
-TIMESTAMP = 1706210245
+TIMESTAMP = 1706482469
 SHA256 (NGSolve-netgen-v6.2.2401_GH0.tar.gz) = 62ccf0e3f85e69b2847fa53dd62a00abb41baf130a7e98f95eb678807508bfe4
 SIZE (NGSolve-netgen-v6.2.2401_GH0.tar.gz) = 3429544
-SHA256 (NGSolve-pybind11-v2.7.1_GH0.tar.gz) = 616d1c42e4cf14fa27b2a4ff759d7d7b33006fdc5ad8fd603bb2c22622f27020
-SIZE (NGSolve-pybind11-v2.7.1_GH0.tar.gz) = 668217
+SHA256 (NGSolve-pybind11-v2.11.1_GH0.tar.gz) = d475978da0cdc2d43b73f30910786759d593a9d8ee05b1b6846d1eb16c6d2e0c
+SIZE (NGSolve-pybind11-v2.11.1_GH0.tar.gz) = 756445

cad/netgen/pkg-plist

@@ -182,6 +182,9 @@ include/pybind11/detail/internals.h
 include/pybind11/detail/type_caster_base.h
 include/pybind11/detail/typeid.h
 include/pybind11/eigen.h
+include/pybind11/eigen/common.h
+include/pybind11/eigen/matrix.h
+include/pybind11/eigen/tensor.h
 include/pybind11/embed.h
 include/pybind11/eval.h
 include/pybind11/functional.h
@@ -195,6 +198,7 @@ include/pybind11/pytypes.h
 include/pybind11/stl.h
 include/pybind11/stl_bind.h
 include/pybind11/stl/filesystem.h
+include/pybind11/type_caster_pyobject_ptr.h
 include/stlgeom/meshstlsurface.hpp
 include/stlgeom/stlgeom.hpp
 include/stlgeom/stlline.hpp