Bump phpunit/phpunit from 9.6.19 to 11.3.3

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 9.6.19 to 11.3.3.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/11.3.3/ChangeLog-11.3.md)
- [Commits](sebastianbergmann/phpunit@9.6.19...11.3.3)

---
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

@@ -15,7 +15,7 @@
     	"php": ">=7.4"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.4",
+        "phpunit/phpunit": "^11.3",
         "php-coveralls/php-coveralls": "^2.4"
     },
     "autoload": {