- `GodotSynchronizationContext`
- Implements `IDisposable` to dispose of the disposable field `_queue`.
- Makes the class sealed.
- `GodotTaskScheduler`
- Implements `IDisposable` to dispose of the disposable property `Context`.
- Makes the class sealed.
- `Dispatcher`
- Dispose of previous `GodotTaskScheduler` instances before creating a new one.