NEW: Add GitLab unittests for Python 3.12

.gitlab-ci.yml

@@ -100,6 +100,13 @@ unittest_py3.11:
   image: python:3.11
   script: *python_test_script
 
+unittest_py3.12:
+  tags: [ docker ]
+  stage: test
+  needs: [ ]
+  image: python:3.11
+  script: *python_test_script
+
 # Trigger building of server image and integration tests
 trigger_build:
   stage: deploy