Fix flaky Nina CI test (#84522)

tests/components/nina/test_config_flow.py

@@ -303,7 +303,9 @@ async def test_options_flow_entity_removal(hass: HomeAssistant) -> None:
     with patch(
         "pynina.baseApi.BaseAPI._makeRequest",
         wraps=mocked_request_function,
-    ):
+    ), patch(
+        "homeassistant.components.nina._async_update_listener"
+    ) as mock_update_listener:
         await hass.config_entries.async_setup(config_entry.entry_id)
         await hass.async_block_till_done()
 
@@ -330,3 +332,4 @@ async def test_options_flow_entity_removal(hass: HomeAssistant) -> None:
         )
 
         assert len(entries) == 2
+        assert len(mock_update_listener.mock_calls) == 1