build(deps): bump click-extra from 7.8.0 to 7.9.0 in /docs (#654)

Bumps [click-extra](https://github.com/kdeldycke/click-extra) from 7.8.0 to 7.9.0.
- [Release notes](https://github.com/kdeldycke/click-extra/releases)
- [Changelog](https://github.com/kdeldycke/click-extra/blob/main/changelog.md)
- [Commits](kdeldycke/click-extra@v7.8.0...v7.9.0)

---
updated-dependencies:
- dependency-name: click-extra
  dependency-version: 7.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

docs/pyproject.toml

@@ -13,7 +13,7 @@ authors = [
 ]
 
 dependencies = [
-    "click-extra[sphinx]==7.8.0",
+    "click-extra[sphinx]==7.9.0",
     "furo==2025.12.19",
     "myst-parser==5.0.0",
     "rstcheck[sphinx]==6.2.5",