Update tests.yml

Author: cclauss

.github/workflows/tests.yml

@@ -32,11 +32,11 @@ jobs:
         if: matrix.optional-dependencies == 'optional-deps'
         run: pip install -e .[optional]
       - name: Run tests and generate coverage report
-        run: coverage run
+        run: pytest --cov=./ --cov-report=xml
       - run: |
           ls -la .
           ls -la ./.coverage
-          ls -la ./.coverage/reports
+          ls -la ./.coverage/reports || true
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v4
         with: