🚨🚨🚨   Fix ordering of height, width for BLIP image processor
# What does this PR do?

The BLIP image processor incorrectly passed in the dimensions to resize in the order `(width, height)`. This is reordered to be correct. 

In most cases, this won't have an effect as the default height and width are the same. However, this is not backwards compatible for custom configurations with different height, width settings and direct calls to the `resize` method with different height, width values.

This also updates the docstring as this was incorrect.  

## Before submitting
- [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
- [x] Did you read the [contributor guideline](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md#start-contributing-pull-requests),
      Pull Request section?
- [ ] Was this discussed/approved via a Github issue or the [forum](https://discuss.huggingface.co/)? Please add a link
      to it if that's the case.
- [ ] Did you make sure to update the documentation with your changes? Here are the
      [documentation guidelines](https://github.com/huggingface/transformers/tree/main/docs), and
      [here are tips on formatting docstrings](https://github.com/huggingface/transformers/tree/main/docs#writing-source-documentation).
- [ ] Did you write any new necessary tests?
_The documentation is not available anymore as the PR was closed or merged._