Bump kaleido from 0.2.1 to 1.2.0

Bumps [kaleido](https://github.com/plotly/kaleido) from 0.2.1 to 1.2.0.
- [Release notes](https://github.com/plotly/kaleido/releases)
- [Commits](plotly/Kaleido@v0.2.1...v1.2.0)

---
updated-dependencies:
- dependency-name: kaleido
  dependency-version: 1.2.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

docs/requirements.txt

@@ -21,4 +21,4 @@ matplotlib
 
 # For plot generation
 plotly>=5.0
-kaleido==0.2.1
+kaleido==1.2.0