Improvements

• #6900: Debug logs from matplotlib libraries are now hidden by default and are configurable with the LOG_LEVEL_LIBRARIES environment variable.

Bugfixes

• #3597: Fixed issue where temporary model directories were not removed after pulling from a model server. If the model pulled from the server was invalid, this could lead to large amounts of local storage usage.
• #6755: Treat the length of OOV token as 1 to fix token align issue when OOV occurred.
• #6899: Fixed MappingPolicy not predicting action_listen after the mapped action while running rasa test.