upload coverage to codecov

Author: Laure-di

.github/workflows/pytest-cov.yml

@@ -36,3 +36,5 @@ jobs:
         run: poetry install
       - name: Run tests with coverage
         run: poetry run pytest --cov=${{ matrix.lib }} --cov-report=term
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5