Add CPython 3.9.13 (#2372)

plugins/python-build/share/python-build/3.9.13

@@ -0,0 +1,10 @@
+#require_gcc
+prefer_openssl11
+export PYTHON_BUILD_CONFIGURE_WITH_OPENSSL=1
+install_package "openssl-1.1.1n" "https://www.openssl.org/source/openssl-1.1.1n.tar.gz#40dceb51a4f6a5275bde0e6bf20ef4b91bfc32ed57c0552e2e8e15463372b17a" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.1" "https://ftpmirror.gnu.org/readline/readline-8.1.tar.gz#f8ceb4ee131e3232226a17f51b164afc46cd0b9e6cef344be87c65962cb82b02" mac_readline --if has_broken_mac_readline
+if has_tar_xz_support; then
+  install_package "Python-3.9.13" "https://www.python.org/ftp/python/3.9.13/Python-3.9.13.tar.xz#125b0c598f1e15d2aa65406e83f792df7d171cdf38c16803b149994316a3080f" standard verify_py39 copy_python_gdb ensurepip
+else
+  install_package "Python-3.9.13" "https://www.python.org/ftp/python/3.9.13/Python-3.9.13.tgz#829b0d26072a44689a6b0810f5b4a3933ee2a0b8a4bfc99d7c5893ffd4f97c44" standard verify_py39 copy_python_gdb ensurepip
+fi