Bump sphinxext-opengraph from 0.9.0 to 0.9.1

Bumps [sphinxext-opengraph](https://github.com/wpilibsuite/sphinxext-opengraph) from 0.9.0 to 0.9.1.
- [Release notes](https://github.com/wpilibsuite/sphinxext-opengraph/releases)
- [Commits](wpilibsuite/sphinxext-opengraph@v0.9.0...v0.9.1)

---
updated-dependencies:
- dependency-name: sphinxext-opengraph
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements/docs.txt

@@ -5,7 +5,7 @@ sphinx-autobuild==2021.3.14
 sphinx-copybutton==0.5.2
 sphinx-inline-tabs==2023.4.21
 sphinx-issues==3.0.1
-sphinxext-opengraph==0.9.0
+sphinxext-opengraph==0.9.1
 sphinx-paramlinks==0.6.0
 sphinxcontrib-programoutput==0.17