Bump notebook from 6.4.10 to 6.5.2

Bumps [notebook](http://jupyter.org) from 6.4.10 to 6.5.2.

---
updated-dependencies:
- dependency-name: notebook
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]