Exclude python 3.6 for macos. Actually use the python-version. Add la…

…test python-versions

.github/workflows/pytest.yml

@@ -17,18 +17,26 @@ jobs:
         - 3.7
         - 3.8
         - 3.9
+        - 3.10
+        - 3.11
+        - 3.12
         platform:
         - ubuntu-20.04
         - macos-latest
         - windows-latest
+        exclude:
+          # 3.6 doesn't exist as a runner on arm64 macs
+          - python-version: 3.6
+            platform: macos-latest
+
     runs-on: "${{ matrix.platform }}"
     steps:
       - uses: actions/checkout@v4
 
       - name: Set up Python 3.6
         uses: actions/setup-python@v5
         with:
-          python-version: "3.6"
+          python-version: ${{matrix.python-version}}
 
       - name: Setup poetry
         uses: abatilo/actions-poetry@v2