Merge pull request #112 from edx/diana/add-python312

feat: Install Python 3.12 on Jenkins.

Author: dianakhuang

playbooks/roles/jenkins_it/defaults/main.yml

@@ -13,6 +13,7 @@ it_oracle_packages:
 
 it_jenkins_python_versions:
   - python3.5-dev
+  - python3.12-dev
 
 it_jenkins_configuration_scripts:
   - 1addJarsToClasspath.groovy