ci: openbsd migrate to python3.12

Author: Mizux

ci/vagrant/openbsd/Vagrantfile

@@ -93,7 +93,7 @@ Vagrant.configure("2") do |config|
   set -x
   pkg_add -u
   pkg_add git cmake
-  pkg_add python-3.11 py3-pip py3-wheel py3-setuptools py3-virtualenv
+  pkg_add python-3.12 py3-pip py3-wheel py3-setuptools py3-virtualenv
   pkg_add py3-numpy py3-pandas py3-matplotlib
   SHELL