Bump kaleido from 0.2.1 to 0.2.1.post1

Bumps [kaleido](https://github.com/plotly/Kaleido) from 0.2.1 to 0.2.1.post1.
- [Release notes](https://github.com/plotly/Kaleido/releases)
- [Commits](plotly/Kaleido@v0.2.1...v0.2.1.post1)

---
updated-dependencies:
- dependency-name: kaleido
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]