python3: upgrade 3.12.3 -> 3.12.4

This release contains numerous security updates and fixes to
regressions. Changelog:

https://docs.python.org/release/3.12.4/whatsnew/changelog.html#python-3-12-4-final



Results of ptests in core-image-ptest-python3 (qemux86-64):

== Tests result: SUCCESS ==

26 tests skipped:
    test.test_asyncio.test_windows_events
    test.test_asyncio.test_windows_utils test.test_gdb.test_backtrace
    test.test_gdb.test_cfunction test.test_gdb.test_cfunction_full
    test.test_gdb.test_misc test.test_gdb.test_pretty_print
    test_asdl_parser test_clinic test_devpoll test_idle test_ioctl
    test_kqueue test_launcher test_msilib test_startfile test_tcl
    test_tix test_tkinter test_ttk test_ttk_textonly test_turtle
    test_winapi test_winconsoleio test_winreg test_wmi

9 tests skipped (resource denied):
    test_curses test_ossaudiodev test_smtpnet test_socketserver
    test_urllib2net test_urllibnet test_winsound test_xmlrpc_net
    test_zipfile64

454 tests OK.

Total duration: 2 min 45 sec
Total tests: run=41,470 skipped=1,548
Total test files: run=480/489 skipped=26 resource_denied=9
Result: SUCCESS
DURATION: 165
END: /usr/lib/python3/ptest
2024-06-10T17:03
STOP: ptest-runner
TOTAL: 1 FAIL: 0

Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>