Bump sphinxcontrib-devhelp from 1.0.6 to 2.0.0

Bumps [sphinxcontrib-devhelp](https://github.com/sphinx-doc/sphinxcontrib-devhelp) from 1.0.6 to 2.0.0.
- [Release notes](https://github.com/sphinx-doc/sphinxcontrib-devhelp/releases)
- [Changelog](https://github.com/sphinx-doc/sphinxcontrib-devhelp/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinxcontrib-devhelp@1.0.6...2.0.0)

---
updated-dependencies:
- dependency-name: sphinxcontrib-devhelp
  dependency-type: indirect
  update-type: version-update:semver-major
...

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