ci: doc: bump the doc-deps group across 1 directory with 5 updates

Bumps the doc-deps group with 5 updates in the /doc directory:

| Package | From | To |
| --- | --- | --- |
| [doxmlparser](https://github.com/doxygen/doxygen) | `1.14.0` | `1.15.0` |
| [pytest](https://github.com/pytest-dev/pytest) | `8.4.1` | `9.0.1` |
| [pyyaml](https://github.com/yaml/pyyaml) | `6.0.2` | `6.0.3` |
| [sphinx-autobuild](https://github.com/sphinx-doc/sphinx-autobuild) | `2024.10.3` | `2025.8.25` |
| [sphinx-sitemap](https://github.com/jdillard/sphinx-sitemap) | `2.7.2` | `2.9.0` |



Updates `doxmlparser` from 1.14.0 to 1.15.0
- [Release notes](https://github.com/doxygen/doxygen/releases)
- [Changelog](https://github.com/doxygen/doxygen/blob/master/doc_internal/releases.md)
- [Commits](https://github.com/doxygen/doxygen/commits)

Updates `pytest` from 8.4.1 to 9.0.1
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.4.1...9.0.1)

Updates `pyyaml` from 6.0.2 to 6.0.3
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/6.0.3/CHANGES)
- [Commits](yaml/pyyaml@6.0.2...6.0.3)

Updates `sphinx-autobuild` from 2024.10.3 to 2025.8.25
- [Release notes](https://github.com/sphinx-doc/sphinx-autobuild/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx-autobuild/blob/main/NEWS.rst)
- [Commits](sphinx-doc/sphinx-autobuild@2024.10.03...2025.08.25)

Updates `sphinx-sitemap` from 2.7.2 to 2.9.0
- [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...v2.9.0)

---
updated-dependencies:
- dependency-name: doxmlparser
  dependency-version: 1.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: doc-deps
- dependency-name: pytest
  dependency-version: 9.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: doc-deps
- dependency-name: pyyaml
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: doc-deps
- dependency-name: sphinx-autobuild
  dependency-version: 2025.8.25
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: doc-deps
- dependency-name: sphinx-sitemap
  dependency-version: 2.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: doc-deps
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]