test: add specific test case for MQTT client publish functionality

.github/workflows/ci.yml

@@ -28,6 +28,10 @@ jobs:
       run: |
         black --check .
     
+    - name: Run test that crashes locally
+      run: |
+        python -m pytest tests/test_mqtt_client.py::TestMQTTClient::test_publish -v
+
     - name: Run tests with pytest
       run: |
         python -m pytest