Adapt to changed function name in Python 3.13

As requested in https://bugzilla.redhat.com/show_bug.cgi?id=2245864#c1

4902.patch

@@ -0,0 +1,32 @@
+From 4fb75b73c902deae5a4805bb9e4ea6451952183e Mon Sep 17 00:00:00 2001
+From: Mattias Ellert <mattias.ellert@physics.uu.se>
+Date: Tue, 24 Oct 2023 15:59:02 +0200
+Subject: [PATCH] Adapt to changed function name in Python 3.13
+
+According to https://docs.python.org/3.13/whatsnew/3.13.html:
+
+Add PyThreadState_GetUnchecked() function: similar to
+PyThreadState_Get(), but don't kill the process with a fatal error if
+it is NULL. The caller is responsible to check if the result is
+NULL. Previously, the function was private and known as
+_PyThreadState_UncheckedGet().
+---
+ include/pybind11/detail/type_caster_base.h | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/include/pybind11/detail/type_caster_base.h b/include/pybind11/detail/type_caster_base.h
+index fc5f1c88b3..68512b5bd0 100644
+--- a/include/pybind11/detail/type_caster_base.h
++++ b/include/pybind11/detail/type_caster_base.h
+@@ -486,8 +486,10 @@ PYBIND11_NOINLINE handle get_object_handle(const void *ptr, const detail::type_i
+ inline PyThreadState *get_thread_state_unchecked() {
+ #if defined(PYPY_VERSION)
+     return PyThreadState_GET();
+-#else
++#elif PY_VERSION_HEX < 0x030D0000
+     return _PyThreadState_UncheckedGet();
++#else
++    return PyThreadState_GetUnchecked();
+ #endif
+ }
+ 

pybind11.spec

@@ -26,6 +26,9 @@ Source0: https://github.com/pybind/pybind11/archive/v%{version}/%{name}-%{versio
 # Patch out header path
 Patch1:  pybind11-2.10.1-hpath.patch
 
+# Adapt to changed function name in Python 3.13
+Patch2:  https://github.com/pybind/pybind11/pull/4902.patch
+
 BuildRequires: make
 %if %{python2_enabled}
 # Needed to build the python libraries
@@ -108,6 +111,7 @@ This package contains the Python 3 files.
 %prep
 %setup -q
 %patch1 -p1 -b .hpath
+%patch2 -p1 -b .4902
 
 %build
 pys=""