Bump phpunit/phpunit from 9.6.3 to 10.5.12

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 9.6.3 to 10.5.12.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/10.5.12/ChangeLog-10.5.md)
- [Commits](sebastianbergmann/phpunit@9.6.3...10.5.12)

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

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

composer.json

@@ -19,7 +19,7 @@
         "cakephp/cakephp-codesniffer": "^4.5",
         "cakephp/debug_kit": "^4.5",
         "josegonzalez/dotenv": "^3.2",
-        "phpunit/phpunit": "~8.5.0 || ^9.3"
+        "phpunit/phpunit": "^10.5.12"
     },
     "suggest": {
         "markstory/asset_compress": "An asset compression plugin which provides file concatenation and a flexible filter system for preprocessing and minification.",