Coverage is busted for 3.12, disable it

.github/workflows/ci.yaml

@@ -15,10 +15,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - {python-version: "3.9", os: ubuntu-latest, documentation: True}
-          - {python-version: "3.10", os: ubuntu-latest, documentation: False}
-          - {python-version: "3.11", os: ubuntu-latest, documentation: False}
-          - {python-version: "3.12", os: ubuntu-latest, documentation: False}
+          - {python-version: "3.9", os: ubuntu-latest, documentation: True, coverage: True}
+          - {python-version: "3.10", os: ubuntu-latest, documentation: False, coverage: True}
+          - {python-version: "3.11", os: ubuntu-latest, documentation: False, coverage: True}
+          - {python-version: "3.12", os: ubuntu-latest, documentation: False, coverage: False}
 
     steps:
       - uses: actions/checkout@v2
@@ -39,12 +39,18 @@ jobs:
           python -m isort ebcc/ --diff --check-only --verbose
           python -m flake8 ebcc/ --verbose
           python -m mypy ebcc/ --verbose
-      - name: Run unit tests
+      - name: Run unit tests with coverage
         run: |
           python -m pip install pytest pytest-cov
           pytest --cov ebcc/
+        if: matrix.coverage
+      - name: Run unit tests
+        run: |
+          python -m pip install pytest
+          pytest
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           verbose: true
+        if: matrix.coverage