Fix race in conversation test_todo_add_item_fr (#182205)

tests/components/conversation/test_default_agent_intents.py

@@ -448,6 +448,8 @@ async def test_todo_add_item_fr(
 ) -> None:
     """Test that wildcard matches prioritize results with more literal text matched."""
     assert await async_setup_component(hass, todo.DOMAIN, {})
+    # The todo intent handlers are registered by a background task
+    await hass.async_block_till_done()
     hass.states.async_set("todo.liste_des_courses", 0, {})
 
     with (