add upterm action to workflow for debugging

.github/workflows/unit_tests.yml

@@ -31,6 +31,12 @@ jobs:
           pip install pytest
           pip install -r requirements.txt
 
+      - name: Setup upterm session
+        uses: lhotari/action-upterm@v1
+        with:
+          ## If no one connects after 5 minutes, shut down server.
+          wait-timeout-minutes: 5
+
       - name: Test with pytest
         run: |
           cd tests