Update phpunit/phpunit requirement from ^9.0||^7.0 to ^10.3.2

Updates the requirements on [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) to permit the latest version.
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/10.3.2/ChangeLog-10.3.md)
- [Commits](https://github.com/sebastianbergmann/phpunit/commits/10.3.2)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

composer.json

@@ -28,7 +28,7 @@
         "backpack/crud": "^6.0"
     },
     "require-dev": {
-        "phpunit/phpunit" : "^9.0||^7.0",
+        "phpunit/phpunit" : "^10.3.2",
         "scrutinizer/ocular": "~1.1"
     },
     "autoload": {