Merge pull request #13 from phpfui/PHPUnit

Allow PHPUnit 10 and 11

Author: mnapoli

composer.json

@@ -17,6 +17,6 @@
     },
     "require": {
         "php": ">=7.3",
-        "phpunit/phpunit": "^8.5|^9.0"
+        "phpunit/phpunit": "^8.5|^9.0|^10.0|^11.0"
     }
 }