Bump sphinxcontrib-phpdomain from 0.12.0 to 0.13.0

Bumps [sphinxcontrib-phpdomain](https://github.com/markstory/sphinxcontrib-phpdomain) from 0.12.0 to 0.13.0.
- [Release notes](https://github.com/markstory/sphinxcontrib-phpdomain/releases)
- [Changelog](https://github.com/markstory/sphinxcontrib-phpdomain/blob/master/CHANGES)
- [Commits](markstory/sphinxcontrib-phpdomain@0.12.0...0.13.0)

---
updated-dependencies:
- dependency-name: sphinxcontrib-phpdomain
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
 docutils==0.20.1
 sphinx==8.1.3
-sphinxcontrib-phpdomain==0.12.0
+sphinxcontrib-phpdomain==0.13.0
 cakephpsphinx>=0.1.58,<1.0