python3, python3-tkinter: update to 3.12.0

Also mark this installation as "externally managed" to prevent users
from installing system-wide packages using pip.

Closes: #43735.

common/environment/setup/python.sh

@@ -7,7 +7,7 @@ py2_lib="usr/lib/python${py2_ver}"
 py2_sitelib="${py2_lib}/site-packages"
 py2_inc="usr/include/python${py2_ver}"
 
-py3_ver="3.11"
+py3_ver="3.12"
 py3_abiver=""
 py3_lib="usr/lib/python${py3_ver}"
 py3_sitelib="${py3_lib}/site-packages"

common/hooks/pre-configure/02-script-wrapper.sh

@@ -238,7 +238,7 @@ hook() {
 	generic_wrapper3 libetpan-config
 	generic_wrapper3 giblib-config
 	python_wrapper python-config 2.7
-	python_wrapper python3-config 3.11
+	python_wrapper python3-config 3.12
 	apr_apu_wrapper apr-1-config
 	apr_apu_wrapper apu-1-config
 }

common/shlibs

@@ -1720,8 +1720,8 @@ libportaudio.so.2 portaudio-19.20140130_1
 libportaudiocpp.so.0 portaudio-cpp-19.20140130_1
 libdar.so.6000 libdar-2.6.6_1
 libdar64.so.6000 libdar-2.6.6_1
-libpython3.so python3-3.9.2_2
-libpython3.11.so.1.0 python3-3.11.0_1
+libpython3.so python3-3.12.0_1
+libpython3.12.so.1.0 python3-3.12.0_1
 libbrscandec2.so.1 brother-brscan3-0.2.11_2
 libxmlrpc_server_abyss.so.3 xmlrpc-c-1.51.06_2
 libxmlrpc++.so.8 xmlrpc-c-1.51.06_2