build(deps): bump nextra from 2.11.0 to 2.11.1

Bumps [nextra](https://github.com/shuding/nextra) from 2.11.0 to 2.11.1.
- [Release notes](https://github.com/shuding/nextra/releases)
- [Commits](https://github.com/shuding/nextra/compare/nextra@2.11.0...nextra@2.11.1)

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

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