Bump nbconvert from 7.8.0 to 7.14.2 (#66)

Bumps [nbconvert](https://github.com/jupyter/nbconvert) from 7.8.0 to 7.14.2.
- [Release notes](https://github.com/jupyter/nbconvert/releases)
- [Changelog](https://github.com/jupyter/nbconvert/blob/main/CHANGELOG.md)
- [Commits](jupyter/nbconvert@v7.8.0...v7.14.2)

---
updated-dependencies:
- dependency-name: nbconvert
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -4,7 +4,7 @@ torch==2.1.2
 torchvision==0.16.2
 gradio==3.41.2
 transformers==4.36.2
-nbconvert==7.8.0
+nbconvert==7.14.2
 jupyterlite==0.2.3
 lightning[app]==2.1.*
 jupyterlab==4.0.12