Add CPython 3.13.12 (#3401)

plugins/python-build/share/python-build/3.13.12

@@ -0,0 +1,10 @@
+prefer_openssl3
+export PYTHON_BUILD_CONFIGURE_WITH_OPENSSL=1
+export PYTHON_BUILD_TCLTK_USE_PKGCONFIG=1
+install_package "openssl-3.6.1" "https://github.com/openssl/openssl/releases/download/openssl-3.6.1/openssl-3.6.1.tar.gz#b1bfedcd5b289ff22aee87c9d600f515767ebf45f77168cb6d64f231f518a82e" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.3" "https://ftpmirror.gnu.org/readline/readline-8.3.tar.gz#fe5383204467828cd495ee8d1d3c037a7eba1389c22bc6a041f627976f9061cc" mac_readline --if has_broken_mac_readline
+if has_tar_xz_support; then
+    install_package "Python-3.13.12" "https://www.python.org/ftp/python/3.13.12/Python-3.13.12.tar.xz#2a84cd31dd8d8ea8aaff75de66fc1b4b0127dd5799aa50a64ae9a313885b4593" standard verify_py313 copy_python_gdb ensurepip
+else
+    install_package "Python-3.13.12" "https://www.python.org/ftp/python/3.13.12/Python-3.13.12.tgz#12e7cb170ad2d1a69aee96a1cc7fc8de5b1e97a2bdac51683a3db016ec9a2996" standard verify_py313 copy_python_gdb ensurepip
+fi