Bump pymdown-extensions from 9.5 to 10.0 in /docs (#4963)

Bumps [pymdown-extensions](https://github.com/facelessuser/pymdown-extensions) from 9.5 to 10.0.
- [Release notes](https://github.com/facelessuser/pymdown-extensions/releases)
- [Commits](https://github.com/facelessuser/pymdown-extensions/compare/9.5...10.0)

---
updated-dependencies:
- dependency-name: pymdown-extensions
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/requirements.txt

@@ -43,7 +43,7 @@ pip-tools==6.8.0
     # via -r requirements.in
 pygments==2.12.0
     # via mkdocs-material
-pymdown-extensions==9.5
+pymdown-extensions==10.0
     # via mkdocs-material
 pyparsing==3.0.9
     # via packaging
@@ -52,6 +52,7 @@ python-dateutil==2.8.2
 pyyaml==6.0
     # via
     #   mkdocs
+    #   pymdown-extensions
     #   pyyaml-env-tag
 pyyaml-env-tag==0.1
     # via mkdocs