Upload the artifacts

Author: Michael Vasseur

.github/workflows/unit-tests.yml

@@ -31,4 +31,7 @@ jobs:
         run: wget https://codecov.io/bash -O newcodecov
       - name: Detect changes to manually verify
         run: diff newcodecov .github/jobs/uploadcodecov.sh
-
+      - name: Upload artifact for debugging
+        uses: actions/upload-artifact@v3
+        with:
+          path: /tmp/artifacts