fix natten installation
# What does this PR do?

I made a mistake in #20546 and it ended up with
```bash
# For `dinat` model
RUN python3 -m pip install --no-cache-dir natten

RUN python3 -m pip install --no-cache-dir natten -f https://shi-labs.com/natten/wheels/$CUDA/
```
so the CUDA version was not installed (due to `Requirement already satisfied`)
_The documentation is not available anymore as the PR was closed or merged._