Bugfixes
- [7717](https://github.com/rasahq/rasa/issues/7717): Fix wrong warning `The method 'EventBroker.close' was changed to be asynchronous` when
the `EventBroker.close` was actually asynchronous.
- [7720](https://github.com/rasahq/rasa/issues/7720): Fix incremental training for cases when training data does not contain entities but `DIETClassifier` is configured to perform entity recognition also.
Now, the instance of `RasaModelData` inside `DIETClassifier` does not contain `entities` as a feature for training if there is no training data present for entity recognition.