add upload of pytest artifacts

Author: jgbradley1

.github/workflows/integration.yaml

@@ -55,4 +55,12 @@ jobs:
       - name: Run integration tests
         working-directory: ${{ github.workspace }}/backend
         run: |
-          pytest -s --cov=src tests
+          pytest --cov=src --junitxml=junit/test-results.xml tests/
+
+      - name: Upload pytest test results
+        uses: actions/upload-artifact@v4
+        with:
+          name: pytest-results
+          path: junit/test-results.xml
+        # Use always() to always run this step to publish test results when there are test failures
+        if: ${{ always() }}