[trainer] sanity checks for `save_steps=0|None` and `logging_steps=0` (#12796)
* [trainer] fix % 0
* sanity checks
* fix logging_strategy
* correction
* Update src/transformers/training_args.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>