Add Python 3.12 to GitHub unit testing workflow

Author: musicinmybrain

.github/workflows/UnitTesting.yaml

@@ -16,13 +16,14 @@ jobs:
       py39: 3.9
       py310: '3.10'
       py311: '3.11'
+      py311: '3.12'
       DB_DATABASE: test_db
       DB_USER: root
       DB_PASSWORD: root
     strategy:
       fail-fast: false
       matrix:
-        python-version: [py37, py38, py39, py310, py311]
+        python-version: [py37, py38, py39, py310, py311, py312]
         testenv: [core, ext]
     steps:
       - name: Checkout repo