invalid paths in `convnextv2-tiny` prevent checkout

The `convnextv2-tiny` includes files with paths that are not accepted by my filesystem (WSL Ubuntu) and prevent git checkout:

```
$ git checkout origin/master
error: invalid path 'brainscore_vision/models/convnextv2-tiny/__init__.py:Zone.Identifier'
error: invalid path 'brainscore_vision/models/convnextv2-tiny/model.py:Zone.Identifier'
error: invalid path 'brainscore_vision/models/convnextv2-tiny/requirements.txt:Zone.Identifier'
error: invalid path 'brainscore_vision/models/convnextv2-tiny/test.py:Zone.Identifier'
```

Start by reproducing the checkout failure on WSL Ubuntu and inspect the listed paths under brainscore_vision/models/convnextv2-tiny/. Check how the four :Zone.Identifier paths entered the repository. Done means the invalid paths are no longer present and git checkout succeeds on the affected filesystem.

Written by the indexing model from the issue text.