flail: attempt testing EOL pythons in workflow

.github/workflows/tests.yml

@@ -14,24 +14,39 @@ jobs:
       fail-fast: false
       matrix:
         runner: [ubuntu-latest]
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", pypy-2.7, pypy-3.7]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", pypy-2.7, pypy-3.8, pypy-3.10]
         include:
-          - python-version: "2.7"
-            runner: ubuntu-20.04
           - python-version: "3.6"
             runner: ubuntu-20.04
+            eol: true
+          - python-version: "3.7"
+            eol: true
+          - python-version: pypy-2.7
+            eol: true
 
     steps:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v4
+      id: setup-python
       with:
         python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
+        update-environment: ${{ ! matrix.eol }}
+
+    - name: Install tox4
+      if: ${{ ! matrix.eol }}
       run: |
         python -m pip install --upgrade pip setuptools
         pip install tox tox-gh-actions
+    - name: Install tox3
+      if: ${{ matrix.eol }}
+      run: |
+        python -m pip install --upgrade pip setuptools
+        pip install tox tox-gh-actions
+        echo "PATH=${PATH}:${{ steps.setup-python.outputs.python-path }}" >> "$GITHUB_ENV"
+
     - name: Test with tox
       run: tox
+
     - uses: actions/upload-artifact@v3
       with:
         name: coverage-data