chore+feat(home-assistant): update to pyo3 0.27 and update extraction errors, switch out SmolStr for Arc<str>, tighten up light service calls and implement some for notify, start implementing units of measurement like for power

home-assistant/src/event/context/context.rs

@@ -28,7 +28,7 @@ impl<'py, Event: IntoPyObject<'py>> IntoPyObject<'py> for Context<Event> {
             .bind(py);
 
         let context_class = homeassistant_core.getattr("Context")?;
-        let context_class = context_class.downcast_into::<PyType>()?;
+        let context_class = context_class.cast_into::<PyType>()?;
 
         let context_instance = context_class.call1((self.user_id, self.parent_id, self.id))?;