build(deps-dev): bump phpunit/phpunit from 10.5.47 to 13.1.9

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 10.5.47 to 13.1.9.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/13.1.9/ChangeLog-13.1.md)
- [Commits](sebastianbergmann/phpunit@10.5.47...13.1.9)

---
updated-dependencies:
- dependency-name: phpunit/phpunit
  dependency-version: 13.1.9
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

composer.json

@@ -8,7 +8,7 @@
 	},
 	"require-dev": {
 		"phpstan/phpstan": "^1.10",
-		"phpunit/phpunit": "^10.1",
+		"phpunit/phpunit": "^13.1",
 		"phpmd/phpmd": "^2.13",
 		"squizlabs/php_codesniffer": "^3.7"
 	},