Update no_trainer examples to use new logger
# Update `no_trainer` examples to use the new Accelerate logger

## What does this add?

- Accelerate recently added a [new logger](https://github.com/huggingface/accelerate/pull/337/) to help deal with repeat logs across all processes. If it should be logged on all, a new kwarg `main_process_only=False` should be passed in. 

This helps also solve an annoyance users were pointing out about repeat logs leading to misunderstandings of how the internal API was acting on

## What parts of the API does this impact?

### User-facing:

The examples now show using the new `get_logger()` function from Accelerate
_The documentation is not available anymore as the PR was closed or merged._<|||||>rereview for propagate sanity check then all good 🤗 