CTC example: updated trainer parameters to save tokenizer
The current example only passes `feature_extractor` to `Trainer` and thus `tokenizer` is not saved and won't be pushed to Hub. This PR fixes this by passing the `processor` to `Trainer`. It can probably be refactored further to get the tokenizer and feature_extractor from the instantiated processor, but with regard to behavior, this small fix seems to address the problem.
_The documentation is not available anymore as the PR was closed or merged._<|||||>Thanks @MKhalusova!