Bump sphinxext-opengraph from 0.10.0 to 0.13.0

Bumps [sphinxext-opengraph](https://github.com/sphinx-doc/sphinxext-opengraph) from 0.10.0 to 0.13.0.
- [Release notes](https://github.com/sphinx-doc/sphinxext-opengraph/releases)
- [Commits](sphinx-doc/sphinxext-opengraph@v0.10.0...v0.13.0)

---
updated-dependencies:
- dependency-name: sphinxext-opengraph
  dependency-version: 0.13.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]