Fix typo in bug report template
# What does this PR do?

Fix a typo in issue templates.

## Before submitting
- [x] 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?
_The documentation is not available anymore as the PR was closed or merged._