Python 3.11 CI

Author: darrenburns

.github/workflows/pythonpackage.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11-rc.2"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
     defaults:
       run:
         shell: bash