Bump jupyter-events from 0.7.0 to 0.8.0

Bumps [jupyter-events](https://github.com/jupyter/jupyter_events) from 0.7.0 to 0.8.0.
- [Release notes](https://github.com/jupyter/jupyter_events/releases)
- [Changelog](https://github.com/jupyter/jupyter_events/blob/main/CHANGELOG.md)
- [Commits](jupyter/jupyter_events@v0.7.0...v0.8.0)

---
updated-dependencies:
- dependency-name: jupyter-events
  dependency-type: indirect
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>