Support Python 3.11 (#60)

Signed-off-by: Jesse Whitehouse <[email protected]>

Author: Jesse

.github/workflows/code-quality-checks.yml

@@ -1,11 +1,17 @@
 name: Code Quality Checks
-on: [pull_request, push]
+on: 
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
 jobs:
   run-unit-tests:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10"]
+        python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
     steps:
       #----------------------------------------------
       #       check-out repo and set-up python