ADD: Python 3.11 to github test platforms

Author: nmacholl

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
     name: build - Python ${{ matrix.python-version }} (${{ matrix.os }})
     runs-on: ${{ matrix.os }}