Bump sphinx-sitemap from 2.7.2 to 2.8.0

Bumps [sphinx-sitemap](https://github.com/jdillard/sphinx-sitemap) from 2.7.2 to 2.8.0.
- [Release notes](https://github.com/jdillard/sphinx-sitemap/releases)
- [Changelog](https://github.com/jdillard/sphinx-sitemap/blob/master/CHANGELOG.rst)
- [Commits](jdillard/sphinx-sitemap@v2.7.2...v2.8.0)

---
updated-dependencies:
- dependency-name: sphinx-sitemap
  dependency-version: 2.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -97,7 +97,7 @@ docs = [
     'sphinxcontrib.asciinema==0.4.2',
     'sphinx_design==0.6.1',
     'sphinxcontrib-details-directive==0.1.0',
-    'sphinx-sitemap==2.7.2',
+    'sphinx-sitemap==2.8.0',
 ]
 test = ['pytest==8.4.1', 'pytest-cov==6.2.1', 'behave==1.3.0']
 casts = ['asciinema==2.4.0']