Build(deps): Bump sphinx-sitemap from 2.6.0 to 2.7.2 in /docs/sphinx (#4985)

Bumps [sphinx-sitemap](https://github.com/jdillard/sphinx-sitemap) from 2.6.0 to 2.7.2.
- [Release notes](https://github.com/jdillard/sphinx-sitemap/releases)
- [Changelog](https://github.com/jdillard/sphinx-sitemap/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/jdillard/sphinx-sitemap/compare/v2.6.0...v2.7.2)

---
updated-dependencies:
- dependency-name: sphinx-sitemap
  dependency-version: 2.7.2
  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>

docs/sphinx/requirements.txt

@@ -215,9 +215,9 @@ sphinx==8.1.3
     #   sphinx-copybutton
     #   sphinx-design
     #   sphinx-external-toc
+    #   sphinx-last-updated-by-git
     #   sphinx-notfound-page
     #   sphinx-reredirects
-    #   sphinx-sitemap
     #   sphinxcontrib-datatemplates
     #   sphinxcontrib-runcmd
 sphinx-book-theme==1.1.4
@@ -228,11 +228,13 @@ sphinx-design==0.6.1
     # via rocm-docs-core
 sphinx-external-toc==1.0.1
     # via rocm-docs-core
+sphinx-last-updated-by-git==0.3.8
+    # via sphinx-sitemap
 sphinx-notfound-page==1.1.0
     # via rocm-docs-core
 sphinx-reredirects==0.1.6
     # via -r requirements.in
-sphinx-sitemap==2.6.0
+sphinx-sitemap==2.7.2
     # via -r requirements.in
 sphinxcontrib-applehelp==2.0.0
     # via sphinx