Bump nbconvert from 6.5.4 to 7.17.0

Bumps [nbconvert](https://github.com/jupyter/nbconvert) from 6.5.4 to 7.17.0.
- [Release notes](https://github.com/jupyter/nbconvert/releases)
- [Changelog](https://github.com/jupyter/nbconvert/blob/main/CHANGELOG.md)
- [Commits](https://github.com/jupyter/nbconvert/commits/v7.17.0)

---
updated-dependencies:
- dependency-name: nbconvert
  dependency-version: 7.17.0
  dependency-type: indirect
...

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Author: dependabot[bot]