Update phpunit/phpunit requirement from ^9.5.21 to ^9.5.25

Updates the requirements on [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) to permit the latest version.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/main/ChangeLog-9.5.md)
- [Commits](sebastianbergmann/phpunit@9.5.21...9.5.25)

---
updated-dependencies:
- dependency-name: phpunit/phpunit
  dependency-type: direct:development
...

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

Author: dependabot[bot]

composer.json

@@ -43,7 +43,7 @@
         "orchestra/database": "^6.28|^7.0",
         "orchestra/testbench": "^6.28|^7.0",
         "orchestra/testbench-core": "^6.28|^7.0",
-        "phpunit/phpunit": "^9.5.21"
+        "phpunit/phpunit": "^9.5.25"
     },
     "config": {
         "sort-packages": true